Home / 14,304.81-21,432.98-8,665.43

Finding the Fourth Proportional to 14,304.81, 21,432.98 and 8,665.43

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Solution

The fourth proportional to 14,304.81, 21,432.98 and 8,665.43 is: 12,983.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,304.81 : 21,432.98 = 8,665.43 : x
  2. Step 2: Convert to fraction form
    14,304.81/21,432.98 = 8,665.43/x
  3. Step 3: Cross multiply
    14,304.81x = 21,432.98 × 8,665.43
  4. Step 4: Simplify right side
    14,304.81x = 185,725,837.39
  5. Step 5: Solve for x
    x = 185,725,837.39/14,304.81
  6. Step 6: Final answer
    x = 12,983.45

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1.5x scale

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.