Home / 8,590.08-12,885.12-3,972.48

Finding the Fourth Proportional to 8,590.08, 12,885.12 and 3,972.48

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Solution

The fourth proportional to 8,590.08, 12,885.12 and 3,972.48 is: 5,958.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.08 : 12,885.12 = 3,972.48 : x
  2. Step 2: Convert to fraction form
    8,590.08/12,885.12 = 3,972.48/x
  3. Step 3: Cross multiply
    8,590.08x = 12,885.12 × 3,972.48
  4. Step 4: Simplify right side
    8,590.08x = 51,185,881.50
  5. Step 5: Solve for x
    x = 51,185,881.50/8,590.08
  6. Step 6: Final answer
    x = 5,958.72

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Double scale
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Similar ratio
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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.