Home / 15,471.06-21,350.18-8,397.47

Finding the Fourth Proportional to 15,471.06, 21,350.18 and 8,397.47

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Solution

The fourth proportional to 15,471.06, 21,350.18 and 8,397.47 is: 11,588.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,471.06 : 21,350.18 = 8,397.47 : x
  2. Step 2: Convert to fraction form
    15,471.06/21,350.18 = 8,397.47/x
  3. Step 3: Cross multiply
    15,471.06x = 21,350.18 × 8,397.47
  4. Step 4: Simplify right side
    15,471.06x = 179,287,496.04
  5. Step 5: Solve for x
    x = 179,287,496.04/15,471.06
  6. Step 6: Final answer
    x = 11,588.57

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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.