Home / 14,331.28-19,776.80-8,363.20

Finding the Fourth Proportional to 14,331.28, 19,776.80 and 8,363.20

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Solution

The fourth proportional to 14,331.28, 19,776.80 and 8,363.20 is: 11,541.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,331.28 : 19,776.80 = 8,363.20 : x
  2. Step 2: Convert to fraction form
    14,331.28/19,776.80 = 8,363.20/x
  3. Step 3: Cross multiply
    14,331.28x = 19,776.80 × 8,363.20
  4. Step 4: Simplify right side
    14,331.28x = 165,397,333.76
  5. Step 5: Solve for x
    x = 165,397,333.76/14,331.28
  6. Step 6: Final answer
    x = 11,541.00

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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.