Home / 8,432.48-12,648.69-2,885.87

Finding the Fourth Proportional to 8,432.48, 12,648.69 and 2,885.87

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Solution

The fourth proportional to 8,432.48, 12,648.69 and 2,885.87 is: 4,328.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.48 : 12,648.69 = 2,885.87 : x
  2. Step 2: Convert to fraction form
    8,432.48/12,648.69 = 2,885.87/x
  3. Step 3: Cross multiply
    8,432.48x = 12,648.69 × 2,885.87
  4. Step 4: Simplify right side
    8,432.48x = 36,502,411.77
  5. Step 5: Solve for x
    x = 36,502,411.77/8,432.48
  6. Step 6: Final answer
    x = 4,328.79

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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.