Home / 8,140.16-12,210.32-2,296.88

Finding the Fourth Proportional to 8,140.16, 12,210.32 and 2,296.88

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Solution

The fourth proportional to 8,140.16, 12,210.32 and 2,296.88 is: 3,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.16 : 12,210.32 = 2,296.88 : x
  2. Step 2: Convert to fraction form
    8,140.16/12,210.32 = 2,296.88/x
  3. Step 3: Cross multiply
    8,140.16x = 12,210.32 × 2,296.88
  4. Step 4: Simplify right side
    8,140.16x = 28,045,639.80
  5. Step 5: Solve for x
    x = 28,045,639.80/8,140.16
  6. Step 6: Final answer
    x = 3,445.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.