Home / 8,621.23-12,931.57-2,381.62

Finding the Fourth Proportional to 8,621.23, 12,931.57 and 2,381.62

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Solution

The fourth proportional to 8,621.23, 12,931.57 and 2,381.62 is: 3,572.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.23 : 12,931.57 = 2,381.62 : x
  2. Step 2: Convert to fraction form
    8,621.23/12,931.57 = 2,381.62/x
  3. Step 3: Cross multiply
    8,621.23x = 12,931.57 × 2,381.62
  4. Step 4: Simplify right side
    8,621.23x = 30,798,085.74
  5. Step 5: Solve for x
    x = 30,798,085.74/8,621.23
  6. Step 6: Final answer
    x = 3,572.35

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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.