Home / 12,484.55-18,720.37-4,585.04

Finding the Fourth Proportional to 12,484.55, 18,720.37 and 4,585.04

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Solution

The fourth proportional to 12,484.55, 18,720.37 and 4,585.04 is: 6,875.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.55 : 18,720.37 = 4,585.04 : x
  2. Step 2: Convert to fraction form
    12,484.55/18,720.37 = 4,585.04/x
  3. Step 3: Cross multiply
    12,484.55x = 18,720.37 × 4,585.04
  4. Step 4: Simplify right side
    12,484.55x = 85,833,601.80
  5. Step 5: Solve for x
    x = 85,833,601.80/12,484.55
  6. Step 6: Final answer
    x = 6,875.19

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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.