Home / 16,003.40-22,085.12-8,931.20

Finding the Fourth Proportional to 16,003.40, 22,085.12 and 8,931.20

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Solution

The fourth proportional to 16,003.40, 22,085.12 and 8,931.20 is: 12,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,003.40 : 22,085.12 = 8,931.20 : x
  2. Step 2: Convert to fraction form
    16,003.40/22,085.12 = 8,931.20/x
  3. Step 3: Cross multiply
    16,003.40x = 22,085.12 × 8,931.20
  4. Step 4: Simplify right side
    16,003.40x = 197,246,623.74
  5. Step 5: Solve for x
    x = 197,246,623.74/16,003.40
  6. Step 6: Final answer
    x = 12,325.29

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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.