Home / 8,424.71-12,637.35-3,159.18

Finding the Fourth Proportional to 8,424.71, 12,637.35 and 3,159.18

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Solution

The fourth proportional to 8,424.71, 12,637.35 and 3,159.18 is: 4,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.71 : 12,637.35 = 3,159.18 : x
  2. Step 2: Convert to fraction form
    8,424.71/12,637.35 = 3,159.18/x
  3. Step 3: Cross multiply
    8,424.71x = 12,637.35 × 3,159.18
  4. Step 4: Simplify right side
    8,424.71x = 39,923,675.22
  5. Step 5: Solve for x
    x = 39,923,675.22/8,424.71
  6. Step 6: Final answer
    x = 4,738.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.