Home / 7,743.90-10,686.53-4,207.14

Finding the Fourth Proportional to 7,743.90, 10,686.53 and 4,207.14

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Solution

The fourth proportional to 7,743.90, 10,686.53 and 4,207.14 is: 5,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.90 : 10,686.53 = 4,207.14 : x
  2. Step 2: Convert to fraction form
    7,743.90/10,686.53 = 4,207.14/x
  3. Step 3: Cross multiply
    7,743.90x = 10,686.53 × 4,207.14
  4. Step 4: Simplify right side
    7,743.90x = 44,959,706.79
  5. Step 5: Solve for x
    x = 44,959,706.79/7,743.90
  6. Step 6: Final answer
    x = 5,805.82

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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.