Home / 21,909.08-32,864.10-7,118

Finding the Fourth Proportional to 21,909.08, 32,864.10 and 7,118

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Solution

The fourth proportional to 21,909.08, 32,864.10 and 7,118 is: 10,677.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909.08 : 32,864.10 = 7,118 : x
  2. Step 2: Convert to fraction form
    21,909.08/32,864.10 = 7,118/x
  3. Step 3: Cross multiply
    21,909.08x = 32,864.10 × 7,118
  4. Step 4: Simplify right side
    21,909.08x = 233,926,663.80
  5. Step 5: Solve for x
    x = 233,926,663.80/21,909.08
  6. Step 6: Final answer
    x = 10,677.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.