Home / 14,785.50-20,407.46-9,750.63

Finding the Fourth Proportional to 14,785.50, 20,407.46 and 9,750.63

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Solution

The fourth proportional to 14,785.50, 20,407.46 and 9,750.63 is: 13,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.50 : 20,407.46 = 9,750.63 : x
  2. Step 2: Convert to fraction form
    14,785.50/20,407.46 = 9,750.63/x
  3. Step 3: Cross multiply
    14,785.50x = 20,407.46 × 9,750.63
  4. Step 4: Simplify right side
    14,785.50x = 198,985,542.95
  5. Step 5: Solve for x
    x = 198,985,542.95/14,785.50
  6. Step 6: Final answer
    x = 13,458.15

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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.