Home / 8,402.40-12,597.42-4,240.38

Finding the Fourth Proportional to 8,402.40, 12,597.42 and 4,240.38

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Solution

The fourth proportional to 8,402.40, 12,597.42 and 4,240.38 is: 6,357.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402.40 : 12,597.42 = 4,240.38 : x
  2. Step 2: Convert to fraction form
    8,402.40/12,597.42 = 4,240.38/x
  3. Step 3: Cross multiply
    8,402.40x = 12,597.42 × 4,240.38
  4. Step 4: Simplify right side
    8,402.40x = 53,417,847.82
  5. Step 5: Solve for x
    x = 53,417,847.82/8,402.40
  6. Step 6: Final answer
    x = 6,357.45

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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.