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Finding the Fourth Proportional to 14,649.60, 22,000.80 and 12,835.20

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Solution

The fourth proportional to 14,649.60, 22,000.80 and 12,835.20 is: 19,275.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.60 : 22,000.80 = 12,835.20 : x
  2. Step 2: Convert to fraction form
    14,649.60/22,000.80 = 12,835.20/x
  3. Step 3: Cross multiply
    14,649.60x = 22,000.80 × 12,835.20
  4. Step 4: Simplify right side
    14,649.60x = 282,384,668.16
  5. Step 5: Solve for x
    x = 282,384,668.16/14,649.60
  6. Step 6: Final answer
    x = 19,275.93

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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.