Home / 8,697.16-12,001.35-4,920.13

Finding the Fourth Proportional to 8,697.16, 12,001.35 and 4,920.13

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Solution

The fourth proportional to 8,697.16, 12,001.35 and 4,920.13 is: 6,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.16 : 12,001.35 = 4,920.13 : x
  2. Step 2: Convert to fraction form
    8,697.16/12,001.35 = 4,920.13/x
  3. Step 3: Cross multiply
    8,697.16x = 12,001.35 × 4,920.13
  4. Step 4: Simplify right side
    8,697.16x = 59,048,177.57
  5. Step 5: Solve for x
    x = 59,048,177.57/8,697.16
  6. Step 6: Final answer
    x = 6,789.36

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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.