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Finding the Fourth Proportional to 17,867.76, 24,656.64 and 9,909.28

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Solution

The fourth proportional to 17,867.76, 24,656.64 and 9,909.28 is: 13,674.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,867.76 : 24,656.64 = 9,909.28 : x
  2. Step 2: Convert to fraction form
    17,867.76/24,656.64 = 9,909.28/x
  3. Step 3: Cross multiply
    17,867.76x = 24,656.64 × 9,909.28
  4. Step 4: Simplify right side
    17,867.76x = 244,329,549.62
  5. Step 5: Solve for x
    x = 244,329,549.62/17,867.76
  6. Step 6: Final answer
    x = 13,674.32

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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.