Home / 7,418.40-10,240.35-4,867.13

Finding the Fourth Proportional to 7,418.40, 10,240.35 and 4,867.13

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Solution

The fourth proportional to 7,418.40, 10,240.35 and 4,867.13 is: 6,718.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.40 : 10,240.35 = 4,867.13 : x
  2. Step 2: Convert to fraction form
    7,418.40/10,240.35 = 4,867.13/x
  3. Step 3: Cross multiply
    7,418.40x = 10,240.35 × 4,867.13
  4. Step 4: Simplify right side
    7,418.40x = 49,841,114.70
  5. Step 5: Solve for x
    x = 49,841,114.70/7,418.40
  6. Step 6: Final answer
    x = 6,718.58

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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.