Home / 7,873.29-10,868.09-5,221.59

Finding the Fourth Proportional to 7,873.29, 10,868.09 and 5,221.59

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Solution

The fourth proportional to 7,873.29, 10,868.09 and 5,221.59 is: 7,207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.29 : 10,868.09 = 5,221.59 : x
  2. Step 2: Convert to fraction form
    7,873.29/10,868.09 = 5,221.59/x
  3. Step 3: Cross multiply
    7,873.29x = 10,868.09 × 5,221.59
  4. Step 4: Simplify right side
    7,873.29x = 56,748,683.96
  5. Step 5: Solve for x
    x = 56,748,683.96/7,873.29
  6. Step 6: Final answer
    x = 7,207.75

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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.