Home / 13,375.56-18,441.51-8,587.07

Finding the Fourth Proportional to 13,375.56, 18,441.51 and 8,587.07

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Solution

The fourth proportional to 13,375.56, 18,441.51 and 8,587.07 is: 11,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.56 : 18,441.51 = 8,587.07 : x
  2. Step 2: Convert to fraction form
    13,375.56/18,441.51 = 8,587.07/x
  3. Step 3: Cross multiply
    13,375.56x = 18,441.51 × 8,587.07
  4. Step 4: Simplify right side
    13,375.56x = 158,358,445.07
  5. Step 5: Solve for x
    x = 158,358,445.07/13,375.56
  6. Step 6: Final answer
    x = 11,839.39

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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.