Home / 8,275.12-11,418.40-4,916.70

Finding the Fourth Proportional to 8,275.12, 11,418.40 and 4,916.70

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Solution

The fourth proportional to 8,275.12, 11,418.40 and 4,916.70 is: 6,784.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.12 : 11,418.40 = 4,916.70 : x
  2. Step 2: Convert to fraction form
    8,275.12/11,418.40 = 4,916.70/x
  3. Step 3: Cross multiply
    8,275.12x = 11,418.40 × 4,916.70
  4. Step 4: Simplify right side
    8,275.12x = 56,140,765.60
  5. Step 5: Solve for x
    x = 56,140,765.60/8,275.12
  6. Step 6: Final answer
    x = 6,784.28

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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.