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Finding the Fourth Proportional to 7,900.16, 10,896 and 7,370.24

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Solution

The fourth proportional to 7,900.16, 10,896 and 7,370.24 is: 10,165.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.16 : 10,896 = 7,370.24 : x
  2. Step 2: Convert to fraction form
    7,900.16/10,896 = 7,370.24/x
  3. Step 3: Cross multiply
    7,900.16x = 10,896 × 7,370.24
  4. Step 4: Simplify right side
    7,900.16x = 80,306,135.04
  5. Step 5: Solve for x
    x = 80,306,135.04/7,900.16
  6. Step 6: Final answer
    x = 10,165.13

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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.