Home / 9,902.61-13,665.40-5,426.35

Finding the Fourth Proportional to 9,902.61, 13,665.40 and 5,426.35

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Solution

The fourth proportional to 9,902.61, 13,665.40 and 5,426.35 is: 7,488.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,902.61 : 13,665.40 = 5,426.35 : x
  2. Step 2: Convert to fraction form
    9,902.61/13,665.40 = 5,426.35/x
  3. Step 3: Cross multiply
    9,902.61x = 13,665.40 × 5,426.35
  4. Step 4: Simplify right side
    9,902.61x = 74,153,243.29
  5. Step 5: Solve for x
    x = 74,153,243.29/9,902.61
  6. Step 6: Final answer
    x = 7,488.25

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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.