Home / 15,550.55-21,459.70-8,476.97

Finding the Fourth Proportional to 15,550.55, 21,459.70 and 8,476.97

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Solution

The fourth proportional to 15,550.55, 21,459.70 and 8,476.97 is: 11,698.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.55 : 21,459.70 = 8,476.97 : x
  2. Step 2: Convert to fraction form
    15,550.55/21,459.70 = 8,476.97/x
  3. Step 3: Cross multiply
    15,550.55x = 21,459.70 × 8,476.97
  4. Step 4: Simplify right side
    15,550.55x = 181,913,233.11
  5. Step 5: Solve for x
    x = 181,913,233.11/15,550.55
  6. Step 6: Final answer
    x = 11,698.19

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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.