Home / 8,621.15-12,931.38-2,465.15

Finding the Fourth Proportional to 8,621.15, 12,931.38 and 2,465.15

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Solution

The fourth proportional to 8,621.15, 12,931.38 and 2,465.15 is: 3,697.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.15 : 12,931.38 = 2,465.15 : x
  2. Step 2: Convert to fraction form
    8,621.15/12,931.38 = 2,465.15/x
  3. Step 3: Cross multiply
    8,621.15x = 12,931.38 × 2,465.15
  4. Step 4: Simplify right side
    8,621.15x = 31,877,726.75
  5. Step 5: Solve for x
    x = 31,877,726.75/8,621.15
  6. Step 6: Final answer
    x = 3,697.62

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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.