Home / 8,275.10-11,418.95-4,871.57

Finding the Fourth Proportional to 8,275.10, 11,418.95 and 4,871.57

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Solution

The fourth proportional to 8,275.10, 11,418.95 and 4,871.57 is: 6,722.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.10 : 11,418.95 = 4,871.57 : x
  2. Step 2: Convert to fraction form
    8,275.10/11,418.95 = 4,871.57/x
  3. Step 3: Cross multiply
    8,275.10x = 11,418.95 × 4,871.57
  4. Step 4: Simplify right side
    8,275.10x = 55,628,169.34
  5. Step 5: Solve for x
    x = 55,628,169.34/8,275.10
  6. Step 6: Final answer
    x = 6,722.36

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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.