Home / 14,748.18-20,353.65-8,376.78

Finding the Fourth Proportional to 14,748.18, 20,353.65 and 8,376.78

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Solution

The fourth proportional to 14,748.18, 20,353.65 and 8,376.78 is: 11,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,748.18 : 20,353.65 = 8,376.78 : x
  2. Step 2: Convert to fraction form
    14,748.18/20,353.65 = 8,376.78/x
  3. Step 3: Cross multiply
    14,748.18x = 20,353.65 × 8,376.78
  4. Step 4: Simplify right side
    14,748.18x = 170,498,093.16
  5. Step 5: Solve for x
    x = 170,498,093.16/14,748.18
  6. Step 6: Final answer
    x = 11,560.62

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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.