Home / 12,445.32-18,661.50-5,869.74

Finding the Fourth Proportional to 12,445.32, 18,661.50 and 5,869.74

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Solution

The fourth proportional to 12,445.32, 18,661.50 and 5,869.74 is: 8,801.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.32 : 18,661.50 = 5,869.74 : x
  2. Step 2: Convert to fraction form
    12,445.32/18,661.50 = 5,869.74/x
  3. Step 3: Cross multiply
    12,445.32x = 18,661.50 × 5,869.74
  4. Step 4: Simplify right side
    12,445.32x = 109,538,153.01
  5. Step 5: Solve for x
    x = 109,538,153.01/12,445.32
  6. Step 6: Final answer
    x = 8,801.55

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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.