Home / 15,853.08-21,857.04-13,010.16

Finding the Fourth Proportional to 15,853.08, 21,857.04 and 13,010.16

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Solution

The fourth proportional to 15,853.08, 21,857.04 and 13,010.16 is: 17,937.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853.08 : 21,857.04 = 13,010.16 : x
  2. Step 2: Convert to fraction form
    15,853.08/21,857.04 = 13,010.16/x
  3. Step 3: Cross multiply
    15,853.08x = 21,857.04 × 13,010.16
  4. Step 4: Simplify right side
    15,853.08x = 284,363,587.53
  5. Step 5: Solve for x
    x = 284,363,587.53/15,853.08
  6. Step 6: Final answer
    x = 17,937.43

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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.