Home / 7,618.14-10,513.10-4,215.11

Finding the Fourth Proportional to 7,618.14, 10,513.10 and 4,215.11

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Solution

The fourth proportional to 7,618.14, 10,513.10 and 4,215.11 is: 5,816.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.14 : 10,513.10 = 4,215.11 : x
  2. Step 2: Convert to fraction form
    7,618.14/10,513.10 = 4,215.11/x
  3. Step 3: Cross multiply
    7,618.14x = 10,513.10 × 4,215.11
  4. Step 4: Simplify right side
    7,618.14x = 44,313,830.91
  5. Step 5: Solve for x
    x = 44,313,830.91/7,618.14
  6. Step 6: Final answer
    x = 5,816.88

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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.