Home / 10,363.20-15,544.80-6,417.60

Finding the Fourth Proportional to 10,363.20, 15,544.80 and 6,417.60

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Solution

The fourth proportional to 10,363.20, 15,544.80 and 6,417.60 is: 9,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.20 : 15,544.80 = 6,417.60 : x
  2. Step 2: Convert to fraction form
    10,363.20/15,544.80 = 6,417.60/x
  3. Step 3: Cross multiply
    10,363.20x = 15,544.80 × 6,417.60
  4. Step 4: Simplify right side
    10,363.20x = 99,760,308.48
  5. Step 5: Solve for x
    x = 99,760,308.48/10,363.20
  6. Step 6: Final answer
    x = 9,626.40

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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.