Home / 13,531.12-18,672.86-7,562.77

Finding the Fourth Proportional to 13,531.12, 18,672.86 and 7,562.77

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Solution

The fourth proportional to 13,531.12, 18,672.86 and 7,562.77 is: 10,436.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.12 : 18,672.86 = 7,562.77 : x
  2. Step 2: Convert to fraction form
    13,531.12/18,672.86 = 7,562.77/x
  3. Step 3: Cross multiply
    13,531.12x = 18,672.86 × 7,562.77
  4. Step 4: Simplify right side
    13,531.12x = 141,218,517.65
  5. Step 5: Solve for x
    x = 141,218,517.65/13,531.12
  6. Step 6: Final answer
    x = 10,436.57

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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.