Home / 14,781.32-22,171.98-8,621

Finding the Fourth Proportional to 14,781.32, 22,171.98 and 8,621

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Solution

The fourth proportional to 14,781.32, 22,171.98 and 8,621 is: 12,931.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.32 : 22,171.98 = 8,621 : x
  2. Step 2: Convert to fraction form
    14,781.32/22,171.98 = 8,621/x
  3. Step 3: Cross multiply
    14,781.32x = 22,171.98 × 8,621
  4. Step 4: Simplify right side
    14,781.32x = 191,144,639.58
  5. Step 5: Solve for x
    x = 191,144,639.58/14,781.32
  6. Step 6: Final answer
    x = 12,931.50

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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.