Home / 11,621.90-16,041.92-7,430.15

Finding the Fourth Proportional to 11,621.90, 16,041.92 and 7,430.15

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Solution

The fourth proportional to 11,621.90, 16,041.92 and 7,430.15 is: 10,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.90 : 16,041.92 = 7,430.15 : x
  2. Step 2: Convert to fraction form
    11,621.90/16,041.92 = 7,430.15/x
  3. Step 3: Cross multiply
    11,621.90x = 16,041.92 × 7,430.15
  4. Step 4: Simplify right side
    11,621.90x = 119,193,754.53
  5. Step 5: Solve for x
    x = 119,193,754.53/11,621.90
  6. Step 6: Final answer
    x = 10,255.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.