Home / 7,616.10-11,423.75-2,421.57

Finding the Fourth Proportional to 7,616.10, 11,423.75 and 2,421.57

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Solution

The fourth proportional to 7,616.10, 11,423.75 and 2,421.57 is: 3,632.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.10 : 11,423.75 = 2,421.57 : x
  2. Step 2: Convert to fraction form
    7,616.10/11,423.75 = 2,421.57/x
  3. Step 3: Cross multiply
    7,616.10x = 11,423.75 × 2,421.57
  4. Step 4: Simplify right side
    7,616.10x = 27,663,398.18
  5. Step 5: Solve for x
    x = 27,663,398.18/7,616.10
  6. Step 6: Final answer
    x = 3,632.23

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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.