Home / 8,207.79-12,291.95-4,687.13

Finding the Fourth Proportional to 8,207.79, 12,291.95 and 4,687.13

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Solution

The fourth proportional to 8,207.79, 12,291.95 and 4,687.13 is: 7,019.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.79 : 12,291.95 = 4,687.13 : x
  2. Step 2: Convert to fraction form
    8,207.79/12,291.95 = 4,687.13/x
  3. Step 3: Cross multiply
    8,207.79x = 12,291.95 × 4,687.13
  4. Step 4: Simplify right side
    8,207.79x = 57,613,967.60
  5. Step 5: Solve for x
    x = 57,613,967.60/8,207.79
  6. Step 6: Final answer
    x = 7,019.43

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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.