Home / 13,115.34-18,085.32-9,752.76

Finding the Fourth Proportional to 13,115.34, 18,085.32 and 9,752.76

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Solution

The fourth proportional to 13,115.34, 18,085.32 and 9,752.76 is: 13,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.34 : 18,085.32 = 9,752.76 : x
  2. Step 2: Convert to fraction form
    13,115.34/18,085.32 = 9,752.76/x
  3. Step 3: Cross multiply
    13,115.34x = 18,085.32 × 9,752.76
  4. Step 4: Simplify right side
    13,115.34x = 176,381,785.48
  5. Step 5: Solve for x
    x = 176,381,785.48/13,115.34
  6. Step 6: Final answer
    x = 13,448.51

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.