Home / 13,748.59-18,988.60-9,264.56

Finding the Fourth Proportional to 13,748.59, 18,988.60 and 9,264.56

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Solution

The fourth proportional to 13,748.59, 18,988.60 and 9,264.56 is: 12,795.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.59 : 18,988.60 = 9,264.56 : x
  2. Step 2: Convert to fraction form
    13,748.59/18,988.60 = 9,264.56/x
  3. Step 3: Cross multiply
    13,748.59x = 18,988.60 × 9,264.56
  4. Step 4: Simplify right side
    13,748.59x = 175,921,024.02
  5. Step 5: Solve for x
    x = 175,921,024.02/13,748.59
  6. Step 6: Final answer
    x = 12,795.57

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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.