Home / 7,397.40-10,212.61-4,878.57

Finding the Fourth Proportional to 7,397.40, 10,212.61 and 4,878.57

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Solution

The fourth proportional to 7,397.40, 10,212.61 and 4,878.57 is: 6,735.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,397.40 : 10,212.61 = 4,878.57 : x
  2. Step 2: Convert to fraction form
    7,397.40/10,212.61 = 4,878.57/x
  3. Step 3: Cross multiply
    7,397.40x = 10,212.61 × 4,878.57
  4. Step 4: Simplify right side
    7,397.40x = 49,822,920.57
  5. Step 5: Solve for x
    x = 49,822,920.57/7,397.40
  6. Step 6: Final answer
    x = 6,735.19

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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.