Home / 9,666.40-14,521.20-9,272.80

Finding the Fourth Proportional to 9,666.40, 14,521.20 and 9,272.80

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Solution

The fourth proportional to 9,666.40, 14,521.20 and 9,272.80 is: 13,929.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,666.40 : 14,521.20 = 9,272.80 : x
  2. Step 2: Convert to fraction form
    9,666.40/14,521.20 = 9,272.80/x
  3. Step 3: Cross multiply
    9,666.40x = 14,521.20 × 9,272.80
  4. Step 4: Simplify right side
    9,666.40x = 134,652,183.36
  5. Step 5: Solve for x
    x = 134,652,183.36/9,666.40
  6. Step 6: Final answer
    x = 13,929.92

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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.