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Finding the Fourth Proportional to 15,058.84, 20,778.78 and 9,465.88

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Solution

The fourth proportional to 15,058.84, 20,778.78 and 9,465.88 is: 13,061.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,058.84 : 20,778.78 = 9,465.88 : x
  2. Step 2: Convert to fraction form
    15,058.84/20,778.78 = 9,465.88/x
  3. Step 3: Cross multiply
    15,058.84x = 20,778.78 × 9,465.88
  4. Step 4: Simplify right side
    15,058.84x = 196,689,438.03
  5. Step 5: Solve for x
    x = 196,689,438.03/15,058.84
  6. Step 6: Final answer
    x = 13,061.39

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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.