Home / 8,397.76-11,590.68-6,730.24

Finding the Fourth Proportional to 8,397.76, 11,590.68 and 6,730.24

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Solution

The fourth proportional to 8,397.76, 11,590.68 and 6,730.24 is: 9,289.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397.76 : 11,590.68 = 6,730.24 : x
  2. Step 2: Convert to fraction form
    8,397.76/11,590.68 = 6,730.24/x
  3. Step 3: Cross multiply
    8,397.76x = 11,590.68 × 6,730.24
  4. Step 4: Simplify right side
    8,397.76x = 78,008,058.16
  5. Step 5: Solve for x
    x = 78,008,058.16/8,397.76
  6. Step 6: Final answer
    x = 9,289.15

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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.