Home / 8,465.79-12,718.15-5,972.71

Finding the Fourth Proportional to 8,465.79, 12,718.15 and 5,972.71

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Solution

The fourth proportional to 8,465.79, 12,718.15 and 5,972.71 is: 8,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.79 : 12,718.15 = 5,972.71 : x
  2. Step 2: Convert to fraction form
    8,465.79/12,718.15 = 5,972.71/x
  3. Step 3: Cross multiply
    8,465.79x = 12,718.15 × 5,972.71
  4. Step 4: Simplify right side
    8,465.79x = 75,961,798.81
  5. Step 5: Solve for x
    x = 75,961,798.81/8,465.79
  6. Step 6: Final answer
    x = 8,972.80

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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.