Home / 8,411.04-12,616.91-3,145.52

Finding the Fourth Proportional to 8,411.04, 12,616.91 and 3,145.52

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Solution

The fourth proportional to 8,411.04, 12,616.91 and 3,145.52 is: 4,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.04 : 12,616.91 = 3,145.52 : x
  2. Step 2: Convert to fraction form
    8,411.04/12,616.91 = 3,145.52/x
  3. Step 3: Cross multiply
    8,411.04x = 12,616.91 × 3,145.52
  4. Step 4: Simplify right side
    8,411.04x = 39,686,742.74
  5. Step 5: Solve for x
    x = 39,686,742.74/8,411.04
  6. Step 6: Final answer
    x = 4,718.41

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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.