Home / 13,530.18-20,302.56-10,242.48

Finding the Fourth Proportional to 13,530.18, 20,302.56 and 10,242.48

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Solution

The fourth proportional to 13,530.18, 20,302.56 and 10,242.48 is: 15,369.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.18 : 20,302.56 = 10,242.48 : x
  2. Step 2: Convert to fraction form
    13,530.18/20,302.56 = 10,242.48/x
  3. Step 3: Cross multiply
    13,530.18x = 20,302.56 × 10,242.48
  4. Step 4: Simplify right side
    13,530.18x = 207,948,564.75
  5. Step 5: Solve for x
    x = 207,948,564.75/13,530.18
  6. Step 6: Final answer
    x = 15,369.24

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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.