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Finding the Fourth Proportional to 8,903.30, 13,350.90 and 4,742.24

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Solution

The fourth proportional to 8,903.30, 13,350.90 and 4,742.24 is: 7,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.30 : 13,350.90 = 4,742.24 : x
  2. Step 2: Convert to fraction form
    8,903.30/13,350.90 = 4,742.24/x
  3. Step 3: Cross multiply
    8,903.30x = 13,350.90 × 4,742.24
  4. Step 4: Simplify right side
    8,903.30x = 63,313,172.02
  5. Step 5: Solve for x
    x = 63,313,172.02/8,903.30
  6. Step 6: Final answer
    x = 7,111.20

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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.