Home / 13,531.40-18,672.98-7,563.12

Finding the Fourth Proportional to 13,531.40, 18,672.98 and 7,563.12

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Solution

The fourth proportional to 13,531.40, 18,672.98 and 7,563.12 is: 10,436.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.40 : 18,672.98 = 7,563.12 : x
  2. Step 2: Convert to fraction form
    13,531.40/18,672.98 = 7,563.12/x
  3. Step 3: Cross multiply
    13,531.40x = 18,672.98 × 7,563.12
  4. Step 4: Simplify right side
    13,531.40x = 141,225,988.50
  5. Step 5: Solve for x
    x = 141,225,988.50/13,531.40
  6. Step 6: Final answer
    x = 10,436.91

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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.