Home / 14,581.61-20,117.58-8,206.91

Finding the Fourth Proportional to 14,581.61, 20,117.58 and 8,206.91

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Solution

The fourth proportional to 14,581.61, 20,117.58 and 8,206.91 is: 11,322.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,581.61 : 20,117.58 = 8,206.91 : x
  2. Step 2: Convert to fraction form
    14,581.61/20,117.58 = 8,206.91/x
  3. Step 3: Cross multiply
    14,581.61x = 20,117.58 × 8,206.91
  4. Step 4: Simplify right side
    14,581.61x = 165,103,067.89
  5. Step 5: Solve for x
    x = 165,103,067.89/14,581.61
  6. Step 6: Final answer
    x = 11,322.70

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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.