Home / 7,869.10-10,853.65-5,346.80

Finding the Fourth Proportional to 7,869.10, 10,853.65 and 5,346.80

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Solution

The fourth proportional to 7,869.10, 10,853.65 and 5,346.80 is: 7,374.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.10 : 10,853.65 = 5,346.80 : x
  2. Step 2: Convert to fraction form
    7,869.10/10,853.65 = 5,346.80/x
  3. Step 3: Cross multiply
    7,869.10x = 10,853.65 × 5,346.80
  4. Step 4: Simplify right side
    7,869.10x = 58,032,295.82
  5. Step 5: Solve for x
    x = 58,032,295.82/7,869.10
  6. Step 6: Final answer
    x = 7,374.71

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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.