Home / 14,385.60-19,852.80-8,720.52

Finding the Fourth Proportional to 14,385.60, 19,852.80 and 8,720.52

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Solution

The fourth proportional to 14,385.60, 19,852.80 and 8,720.52 is: 12,034.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.60 : 19,852.80 = 8,720.52 : x
  2. Step 2: Convert to fraction form
    14,385.60/19,852.80 = 8,720.52/x
  3. Step 3: Cross multiply
    14,385.60x = 19,852.80 × 8,720.52
  4. Step 4: Simplify right side
    14,385.60x = 173,126,739.46
  5. Step 5: Solve for x
    x = 173,126,739.46/14,385.60
  6. Step 6: Final answer
    x = 12,034.72

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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.