Home / 13,115.39-18,085.28-9,752.67

Finding the Fourth Proportional to 13,115.39, 18,085.28 and 9,752.67

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Solution

The fourth proportional to 13,115.39, 18,085.28 and 9,752.67 is: 13,448.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.39 : 18,085.28 = 9,752.67 : x
  2. Step 2: Convert to fraction form
    13,115.39/18,085.28 = 9,752.67/x
  3. Step 3: Cross multiply
    13,115.39x = 18,085.28 × 9,752.67
  4. Step 4: Simplify right side
    13,115.39x = 176,379,718.93
  5. Step 5: Solve for x
    x = 176,379,718.93/13,115.39
  6. Step 6: Final answer
    x = 13,448.31

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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.