Home / 14,879.24-20,526.28-8,909.78

Finding the Fourth Proportional to 14,879.24, 20,526.28 and 8,909.78

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Solution

The fourth proportional to 14,879.24, 20,526.28 and 8,909.78 is: 12,291.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,879.24 : 20,526.28 = 8,909.78 : x
  2. Step 2: Convert to fraction form
    14,879.24/20,526.28 = 8,909.78/x
  3. Step 3: Cross multiply
    14,879.24x = 20,526.28 × 8,909.78
  4. Step 4: Simplify right side
    14,879.24x = 182,884,639.02
  5. Step 5: Solve for x
    x = 182,884,639.02/14,879.24
  6. Step 6: Final answer
    x = 12,291.26

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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.