Home / 13,060.89-18,023.78-7,395.55

Finding the Fourth Proportional to 13,060.89, 18,023.78 and 7,395.55

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Solution

The fourth proportional to 13,060.89, 18,023.78 and 7,395.55 is: 10,205.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060.89 : 18,023.78 = 7,395.55 : x
  2. Step 2: Convert to fraction form
    13,060.89/18,023.78 = 7,395.55/x
  3. Step 3: Cross multiply
    13,060.89x = 18,023.78 × 7,395.55
  4. Step 4: Simplify right side
    13,060.89x = 133,295,739.61
  5. Step 5: Solve for x
    x = 133,295,739.61/13,060.89
  6. Step 6: Final answer
    x = 10,205.72

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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.