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Finding the Fourth Proportional to 10,776, 14,869.20 and 6,059.40

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Solution

The fourth proportional to 10,776, 14,869.20 and 6,059.40 is: 8,361.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,776 : 14,869.20 = 6,059.40 : x
  2. Step 2: Convert to fraction form
    10,776/14,869.20 = 6,059.40/x
  3. Step 3: Cross multiply
    10,776x = 14,869.20 × 6,059.40
  4. Step 4: Simplify right side
    10,776x = 90,098,430.48
  5. Step 5: Solve for x
    x = 90,098,430.48/10,776
  6. Step 6: Final answer
    x = 8,361.03

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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.