Home / 7,486.72-10,331.12-4,342.40

Finding the Fourth Proportional to 7,486.72, 10,331.12 and 4,342.40

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Solution

The fourth proportional to 7,486.72, 10,331.12 and 4,342.40 is: 5,992.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.72 : 10,331.12 = 4,342.40 : x
  2. Step 2: Convert to fraction form
    7,486.72/10,331.12 = 4,342.40/x
  3. Step 3: Cross multiply
    7,486.72x = 10,331.12 × 4,342.40
  4. Step 4: Simplify right side
    7,486.72x = 44,861,855.49
  5. Step 5: Solve for x
    x = 44,861,855.49/7,486.72
  6. Step 6: Final answer
    x = 5,992.19

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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.