Home / 14,678.19-20,248.30-9,291.49

Finding the Fourth Proportional to 14,678.19, 20,248.30 and 9,291.49

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Solution

The fourth proportional to 14,678.19, 20,248.30 and 9,291.49 is: 12,817.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,678.19 : 20,248.30 = 9,291.49 : x
  2. Step 2: Convert to fraction form
    14,678.19/20,248.30 = 9,291.49/x
  3. Step 3: Cross multiply
    14,678.19x = 20,248.30 × 9,291.49
  4. Step 4: Simplify right side
    14,678.19x = 188,136,876.97
  5. Step 5: Solve for x
    x = 188,136,876.97/14,678.19
  6. Step 6: Final answer
    x = 12,817.44

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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.