Home / 9,350.40-12,903.68-5,158.56

Finding the Fourth Proportional to 9,350.40, 12,903.68 and 5,158.56

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Solution

The fourth proportional to 9,350.40, 12,903.68 and 5,158.56 is: 7,118.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,350.40 : 12,903.68 = 5,158.56 : x
  2. Step 2: Convert to fraction form
    9,350.40/12,903.68 = 5,158.56/x
  3. Step 3: Cross multiply
    9,350.40x = 12,903.68 × 5,158.56
  4. Step 4: Simplify right side
    9,350.40x = 66,564,407.50
  5. Step 5: Solve for x
    x = 66,564,407.50/9,350.40
  6. Step 6: Final answer
    x = 7,118.88

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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.