Home / 13,421.04-20,138.25-6,030.78

Finding the Fourth Proportional to 13,421.04, 20,138.25 and 6,030.78

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Solution

The fourth proportional to 13,421.04, 20,138.25 and 6,030.78 is: 9,049.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421.04 : 20,138.25 = 6,030.78 : x
  2. Step 2: Convert to fraction form
    13,421.04/20,138.25 = 6,030.78/x
  3. Step 3: Cross multiply
    13,421.04x = 20,138.25 × 6,030.78
  4. Step 4: Simplify right side
    13,421.04x = 121,449,355.34
  5. Step 5: Solve for x
    x = 121,449,355.34/13,421.04
  6. Step 6: Final answer
    x = 9,049.18

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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.