Home / 10,149.40-15,216.90-4,605.40

Finding the Fourth Proportional to 10,149.40, 15,216.90 and 4,605.40

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Solution

The fourth proportional to 10,149.40, 15,216.90 and 4,605.40 is: 6,904.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,149.40 : 15,216.90 = 4,605.40 : x
  2. Step 2: Convert to fraction form
    10,149.40/15,216.90 = 4,605.40/x
  3. Step 3: Cross multiply
    10,149.40x = 15,216.90 × 4,605.40
  4. Step 4: Simplify right side
    10,149.40x = 70,079,911.26
  5. Step 5: Solve for x
    x = 70,079,911.26/10,149.40
  6. Step 6: Final answer
    x = 6,904.83

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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.