Home / 13,404.48-20,077.56-9,002.40

Finding the Fourth Proportional to 13,404.48, 20,077.56 and 9,002.40

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Solution

The fourth proportional to 13,404.48, 20,077.56 and 9,002.40 is: 13,484.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404.48 : 20,077.56 = 9,002.40 : x
  2. Step 2: Convert to fraction form
    13,404.48/20,077.56 = 9,002.40/x
  3. Step 3: Cross multiply
    13,404.48x = 20,077.56 × 9,002.40
  4. Step 4: Simplify right side
    13,404.48x = 180,746,226.14
  5. Step 5: Solve for x
    x = 180,746,226.14/13,404.48
  6. Step 6: Final answer
    x = 13,484.02

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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.