Home / 15,319.56-21,149.02-10,310.12

Finding the Fourth Proportional to 15,319.56, 21,149.02 and 10,310.12

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Solution

The fourth proportional to 15,319.56, 21,149.02 and 10,310.12 is: 14,233.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.56 : 21,149.02 = 10,310.12 : x
  2. Step 2: Convert to fraction form
    15,319.56/21,149.02 = 10,310.12/x
  3. Step 3: Cross multiply
    15,319.56x = 21,149.02 × 10,310.12
  4. Step 4: Simplify right side
    15,319.56x = 218,048,934.08
  5. Step 5: Solve for x
    x = 218,048,934.08/15,319.56
  6. Step 6: Final answer
    x = 14,233.37

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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.