Home / 13,353.08-20,010.18-6,419.48

Finding the Fourth Proportional to 13,353.08, 20,010.18 and 6,419.48

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Solution

The fourth proportional to 13,353.08, 20,010.18 and 6,419.48 is: 9,619.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.08 : 20,010.18 = 6,419.48 : x
  2. Step 2: Convert to fraction form
    13,353.08/20,010.18 = 6,419.48/x
  3. Step 3: Cross multiply
    13,353.08x = 20,010.18 × 6,419.48
  4. Step 4: Simplify right side
    13,353.08x = 128,454,950.31
  5. Step 5: Solve for x
    x = 128,454,950.31/13,353.08
  6. Step 6: Final answer
    x = 9,619.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.