Home / 13,133.00-18,126.59-8,657.55

Finding the Fourth Proportional to 13,133.00, 18,126.59 and 8,657.55

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Solution

The fourth proportional to 13,133.00, 18,126.59 and 8,657.55 is: 11,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.00 : 18,126.59 = 8,657.55 : x
  2. Step 2: Convert to fraction form
    13,133.00/18,126.59 = 8,657.55/x
  3. Step 3: Cross multiply
    13,133.00x = 18,126.59 × 8,657.55
  4. Step 4: Simplify right side
    13,133.00x = 156,931,815.97
  5. Step 5: Solve for x
    x = 156,931,815.97/13,133.00
  6. Step 6: Final answer
    x = 11,949.42

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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.