Home / 9,902.89-13,666.35-5,426.83

Finding the Fourth Proportional to 9,902.89, 13,666.35 and 5,426.83

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Solution

The fourth proportional to 9,902.89, 13,666.35 and 5,426.83 is: 7,489.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,902.89 : 13,666.35 = 5,426.83 : x
  2. Step 2: Convert to fraction form
    9,902.89/13,666.35 = 5,426.83/x
  3. Step 3: Cross multiply
    9,902.89x = 13,666.35 × 5,426.83
  4. Step 4: Simplify right side
    9,902.89x = 74,164,958.17
  5. Step 5: Solve for x
    x = 74,164,958.17/9,902.89
  6. Step 6: Final answer
    x = 7,489.22

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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.