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Finding the Fourth Proportional to 7,238.92, 10,058.74 and 7,209.76

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Solution

The fourth proportional to 7,238.92, 10,058.74 and 7,209.76 is: 10,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.92 : 10,058.74 = 7,209.76 : x
  2. Step 2: Convert to fraction form
    7,238.92/10,058.74 = 7,209.76/x
  3. Step 3: Cross multiply
    7,238.92x = 10,058.74 × 7,209.76
  4. Step 4: Simplify right side
    7,238.92x = 72,521,101.30
  5. Step 5: Solve for x
    x = 72,521,101.30/7,238.92
  6. Step 6: Final answer
    x = 10,018.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.