Home / 13,208.40-19,827.18-10,452.78

Finding the Fourth Proportional to 13,208.40, 19,827.18 and 10,452.78

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Solution

The fourth proportional to 13,208.40, 19,827.18 and 10,452.78 is: 15,690.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.40 : 19,827.18 = 10,452.78 : x
  2. Step 2: Convert to fraction form
    13,208.40/19,827.18 = 10,452.78/x
  3. Step 3: Cross multiply
    13,208.40x = 19,827.18 × 10,452.78
  4. Step 4: Simplify right side
    13,208.40x = 207,249,150.56
  5. Step 5: Solve for x
    x = 207,249,150.56/13,208.40
  6. Step 6: Final answer
    x = 15,690.71

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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.