Home / 13,625.42-18,803.15-7,575.74

Finding the Fourth Proportional to 13,625.42, 18,803.15 and 7,575.74

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Solution

The fourth proportional to 13,625.42, 18,803.15 and 7,575.74 is: 10,454.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.42 : 18,803.15 = 7,575.74 : x
  2. Step 2: Convert to fraction form
    13,625.42/18,803.15 = 7,575.74/x
  3. Step 3: Cross multiply
    13,625.42x = 18,803.15 × 7,575.74
  4. Step 4: Simplify right side
    13,625.42x = 142,447,779.70
  5. Step 5: Solve for x
    x = 142,447,779.70/13,625.42
  6. Step 6: Final answer
    x = 10,454.56

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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.