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Finding the Fourth Proportional to 9,358.80, 14,038.20 and 3,810.30

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Solution

The fourth proportional to 9,358.80, 14,038.20 and 3,810.30 is: 5,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358.80 : 14,038.20 = 3,810.30 : x
  2. Step 2: Convert to fraction form
    9,358.80/14,038.20 = 3,810.30/x
  3. Step 3: Cross multiply
    9,358.80x = 14,038.20 × 3,810.30
  4. Step 4: Simplify right side
    9,358.80x = 53,489,753.46
  5. Step 5: Solve for x
    x = 53,489,753.46/9,358.80
  6. Step 6: Final answer
    x = 5,715.45

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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.