Home / 14,969.86-20,658.30-8,255.76

Finding the Fourth Proportional to 14,969.86, 20,658.30 and 8,255.76

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Solution

The fourth proportional to 14,969.86, 20,658.30 and 8,255.76 is: 11,392.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,969.86 : 20,658.30 = 8,255.76 : x
  2. Step 2: Convert to fraction form
    14,969.86/20,658.30 = 8,255.76/x
  3. Step 3: Cross multiply
    14,969.86x = 20,658.30 × 8,255.76
  4. Step 4: Simplify right side
    14,969.86x = 170,549,966.81
  5. Step 5: Solve for x
    x = 170,549,966.81/14,969.86
  6. Step 6: Final answer
    x = 11,392.89

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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.