Home / 9,475.20-14,220.90-4,218.30

Finding the Fourth Proportional to 9,475.20, 14,220.90 and 4,218.30

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Solution

The fourth proportional to 9,475.20, 14,220.90 and 4,218.30 is: 6,331.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,475.20 : 14,220.90 = 4,218.30 : x
  2. Step 2: Convert to fraction form
    9,475.20/14,220.90 = 4,218.30/x
  3. Step 3: Cross multiply
    9,475.20x = 14,220.90 × 4,218.30
  4. Step 4: Simplify right side
    9,475.20x = 59,988,022.47
  5. Step 5: Solve for x
    x = 59,988,022.47/9,475.20
  6. Step 6: Final answer
    x = 6,331.06

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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.