Home / 13,100.45-18,079.00-7,132.22

Finding the Fourth Proportional to 13,100.45, 18,079.00 and 7,132.22

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Solution

The fourth proportional to 13,100.45, 18,079.00 and 7,132.22 is: 9,842.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.45 : 18,079.00 = 7,132.22 : x
  2. Step 2: Convert to fraction form
    13,100.45/18,079.00 = 7,132.22/x
  3. Step 3: Cross multiply
    13,100.45x = 18,079.00 × 7,132.22
  4. Step 4: Simplify right side
    13,100.45x = 128,943,468.41
  5. Step 5: Solve for x
    x = 128,943,468.41/13,100.45
  6. Step 6: Final answer
    x = 9,842.67

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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.