Home / 7,445.13-10,274.07-4,087.92

Finding the Fourth Proportional to 7,445.13, 10,274.07 and 4,087.92

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Solution

The fourth proportional to 7,445.13, 10,274.07 and 4,087.92 is: 5,641.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.13 : 10,274.07 = 4,087.92 : x
  2. Step 2: Convert to fraction form
    7,445.13/10,274.07 = 4,087.92/x
  3. Step 3: Cross multiply
    7,445.13x = 10,274.07 × 4,087.92
  4. Step 4: Simplify right side
    7,445.13x = 41,999,576.23
  5. Step 5: Solve for x
    x = 41,999,576.23/7,445.13
  6. Step 6: Final answer
    x = 5,641.21

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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.