Home / 7,862.31-10,854.46-5,213.30

Finding the Fourth Proportional to 7,862.31, 10,854.46 and 5,213.30

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Solution

The fourth proportional to 7,862.31, 10,854.46 and 5,213.30 is: 7,197.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.31 : 10,854.46 = 5,213.30 : x
  2. Step 2: Convert to fraction form
    7,862.31/10,854.46 = 5,213.30/x
  3. Step 3: Cross multiply
    7,862.31x = 10,854.46 × 5,213.30
  4. Step 4: Simplify right side
    7,862.31x = 56,587,502.05
  5. Step 5: Solve for x
    x = 56,587,502.05/7,862.31
  6. Step 6: Final answer
    x = 7,197.32

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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.