Home / 8,926.74-12,319.92-5,389.95

Finding the Fourth Proportional to 8,926.74, 12,319.92 and 5,389.95

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Solution

The fourth proportional to 8,926.74, 12,319.92 and 5,389.95 is: 7,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.74 : 12,319.92 = 5,389.95 : x
  2. Step 2: Convert to fraction form
    8,926.74/12,319.92 = 5,389.95/x
  3. Step 3: Cross multiply
    8,926.74x = 12,319.92 × 5,389.95
  4. Step 4: Simplify right side
    8,926.74x = 66,403,752.80
  5. Step 5: Solve for x
    x = 66,403,752.80/8,926.74
  6. Step 6: Final answer
    x = 7,438.75

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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.