Home / 8,424.90-12,637.38-2,581.56

Finding the Fourth Proportional to 8,424.90, 12,637.38 and 2,581.56

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Solution

The fourth proportional to 8,424.90, 12,637.38 and 2,581.56 is: 3,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.90 : 12,637.38 = 2,581.56 : x
  2. Step 2: Convert to fraction form
    8,424.90/12,637.38 = 2,581.56/x
  3. Step 3: Cross multiply
    8,424.90x = 12,637.38 × 2,581.56
  4. Step 4: Simplify right side
    8,424.90x = 32,624,154.71
  5. Step 5: Solve for x
    x = 32,624,154.71/8,424.90
  6. Step 6: Final answer
    x = 3,872.35

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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.