Home / 7,640.10-11,500.35-6,512.58

Finding the Fourth Proportional to 7,640.10, 11,500.35 and 6,512.58

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Solution

The fourth proportional to 7,640.10, 11,500.35 and 6,512.58 is: 9,803.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.10 : 11,500.35 = 6,512.58 : x
  2. Step 2: Convert to fraction form
    7,640.10/11,500.35 = 6,512.58/x
  3. Step 3: Cross multiply
    7,640.10x = 11,500.35 × 6,512.58
  4. Step 4: Simplify right side
    7,640.10x = 74,896,949.40
  5. Step 5: Solve for x
    x = 74,896,949.40/7,640.10
  6. Step 6: Final answer
    x = 9,803.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.