Home / 18,403.61-25,396.08-10,445.72

Finding the Fourth Proportional to 18,403.61, 25,396.08 and 10,445.72

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Solution

The fourth proportional to 18,403.61, 25,396.08 and 10,445.72 is: 14,414.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.61 : 25,396.08 = 10,445.72 : x
  2. Step 2: Convert to fraction form
    18,403.61/25,396.08 = 10,445.72/x
  3. Step 3: Cross multiply
    18,403.61x = 25,396.08 × 10,445.72
  4. Step 4: Simplify right side
    18,403.61x = 265,280,340.78
  5. Step 5: Solve for x
    x = 265,280,340.78/18,403.61
  6. Step 6: Final answer
    x = 14,414.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.