Home / 13,288.05-18,337.24-7,319.83

Finding the Fourth Proportional to 13,288.05, 18,337.24 and 7,319.83

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Solution

The fourth proportional to 13,288.05, 18,337.24 and 7,319.83 is: 10,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.05 : 18,337.24 = 7,319.83 : x
  2. Step 2: Convert to fraction form
    13,288.05/18,337.24 = 7,319.83/x
  3. Step 3: Cross multiply
    13,288.05x = 18,337.24 × 7,319.83
  4. Step 4: Simplify right side
    13,288.05x = 134,225,479.47
  5. Step 5: Solve for x
    x = 134,225,479.47/13,288.05
  6. Step 6: Final answer
    x = 10,101.22

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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.