Home / 13,547.88-20,310.90-12,454.38

Finding the Fourth Proportional to 13,547.88, 20,310.90 and 12,454.38

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Solution

The fourth proportional to 13,547.88, 20,310.90 and 12,454.38 is: 18,671.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.88 : 20,310.90 = 12,454.38 : x
  2. Step 2: Convert to fraction form
    13,547.88/20,310.90 = 12,454.38/x
  3. Step 3: Cross multiply
    13,547.88x = 20,310.90 × 12,454.38
  4. Step 4: Simplify right side
    13,547.88x = 252,959,666.74
  5. Step 5: Solve for x
    x = 252,959,666.74/13,547.88
  6. Step 6: Final answer
    x = 18,671.53

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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.