Home / 13,615.18-20,428.04-5,301.02

Finding the Fourth Proportional to 13,615.18, 20,428.04 and 5,301.02

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Solution

The fourth proportional to 13,615.18, 20,428.04 and 5,301.02 is: 7,953.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.18 : 20,428.04 = 5,301.02 : x
  2. Step 2: Convert to fraction form
    13,615.18/20,428.04 = 5,301.02/x
  3. Step 3: Cross multiply
    13,615.18x = 20,428.04 × 5,301.02
  4. Step 4: Simplify right side
    13,615.18x = 108,289,512.92
  5. Step 5: Solve for x
    x = 108,289,512.92/13,615.18
  6. Step 6: Final answer
    x = 7,953.59

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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.