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Finding the Fourth Proportional to 10,618.88, 14,654.88 and 5,904.32

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Solution

The fourth proportional to 10,618.88, 14,654.88 and 5,904.32 is: 8,148.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.88 : 14,654.88 = 5,904.32 : x
  2. Step 2: Convert to fraction form
    10,618.88/14,654.88 = 5,904.32/x
  3. Step 3: Cross multiply
    10,618.88x = 14,654.88 × 5,904.32
  4. Step 4: Simplify right side
    10,618.88x = 86,527,101.08
  5. Step 5: Solve for x
    x = 86,527,101.08/10,618.88
  6. Step 6: Final answer
    x = 8,148.42

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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.