Home / 13,586.05-20,374.87-6,561.70

Finding the Fourth Proportional to 13,586.05, 20,374.87 and 6,561.70

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Solution

The fourth proportional to 13,586.05, 20,374.87 and 6,561.70 is: 9,840.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.05 : 20,374.87 = 6,561.70 : x
  2. Step 2: Convert to fraction form
    13,586.05/20,374.87 = 6,561.70/x
  3. Step 3: Cross multiply
    13,586.05x = 20,374.87 × 6,561.70
  4. Step 4: Simplify right side
    13,586.05x = 133,693,819.01
  5. Step 5: Solve for x
    x = 133,693,819.01/13,586.05
  6. Step 6: Final answer
    x = 9,840.52

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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.