Home / 7,462.85-10,280.81-6,397.25

Finding the Fourth Proportional to 7,462.85, 10,280.81 and 6,397.25

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Solution

The fourth proportional to 7,462.85, 10,280.81 and 6,397.25 is: 8,812.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,462.85 : 10,280.81 = 6,397.25 : x
  2. Step 2: Convert to fraction form
    7,462.85/10,280.81 = 6,397.25/x
  3. Step 3: Cross multiply
    7,462.85x = 10,280.81 × 6,397.25
  4. Step 4: Simplify right side
    7,462.85x = 65,768,828.38
  5. Step 5: Solve for x
    x = 65,768,828.38/7,462.85
  6. Step 6: Final answer
    x = 8,812.84

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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.