Home / 13,085.34-18,057.27-7,117.04

Finding the Fourth Proportional to 13,085.34, 18,057.27 and 7,117.04

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Solution

The fourth proportional to 13,085.34, 18,057.27 and 7,117.04 is: 9,821.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.34 : 18,057.27 = 7,117.04 : x
  2. Step 2: Convert to fraction form
    13,085.34/18,057.27 = 7,117.04/x
  3. Step 3: Cross multiply
    13,085.34x = 18,057.27 × 7,117.04
  4. Step 4: Simplify right side
    13,085.34x = 128,514,222.59
  5. Step 5: Solve for x
    x = 128,514,222.59/13,085.34
  6. Step 6: Final answer
    x = 9,821.24

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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.