Home / 13,666.30-20,499.45-4,902.10

Finding the Fourth Proportional to 13,666.30, 20,499.45 and 4,902.10

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Solution

The fourth proportional to 13,666.30, 20,499.45 and 4,902.10 is: 7,353.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.30 : 20,499.45 = 4,902.10 : x
  2. Step 2: Convert to fraction form
    13,666.30/20,499.45 = 4,902.10/x
  3. Step 3: Cross multiply
    13,666.30x = 20,499.45 × 4,902.10
  4. Step 4: Simplify right side
    13,666.30x = 100,490,353.85
  5. Step 5: Solve for x
    x = 100,490,353.85/13,666.30
  6. Step 6: Final answer
    x = 7,353.15

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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.