Home / 13,591.85-18,750.35-9,615.15

Finding the Fourth Proportional to 13,591.85, 18,750.35 and 9,615.15

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Solution

The fourth proportional to 13,591.85, 18,750.35 and 9,615.15 is: 13,264.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.85 : 18,750.35 = 9,615.15 : x
  2. Step 2: Convert to fraction form
    13,591.85/18,750.35 = 9,615.15/x
  3. Step 3: Cross multiply
    13,591.85x = 18,750.35 × 9,615.15
  4. Step 4: Simplify right side
    13,591.85x = 180,287,451.84
  5. Step 5: Solve for x
    x = 180,287,451.84/13,591.85
  6. Step 6: Final answer
    x = 13,264.38

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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.