Home / 9,966.50-13,753.60-5,490.67

Finding the Fourth Proportional to 9,966.50, 13,753.60 and 5,490.67

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Solution

The fourth proportional to 9,966.50, 13,753.60 and 5,490.67 is: 7,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.50 : 13,753.60 = 5,490.67 : x
  2. Step 2: Convert to fraction form
    9,966.50/13,753.60 = 5,490.67/x
  3. Step 3: Cross multiply
    9,966.50x = 13,753.60 × 5,490.67
  4. Step 4: Simplify right side
    9,966.50x = 75,516,478.91
  5. Step 5: Solve for x
    x = 75,516,478.91/9,966.50
  6. Step 6: Final answer
    x = 7,577.03

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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.