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Finding the Fourth Proportional to 15,294.84, 21,101.82 and 9,325.08

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Solution

The fourth proportional to 15,294.84, 21,101.82 and 9,325.08 is: 12,865.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,294.84 : 21,101.82 = 9,325.08 : x
  2. Step 2: Convert to fraction form
    15,294.84/21,101.82 = 9,325.08/x
  3. Step 3: Cross multiply
    15,294.84x = 21,101.82 × 9,325.08
  4. Step 4: Simplify right side
    15,294.84x = 196,776,159.65
  5. Step 5: Solve for x
    x = 196,776,159.65/15,294.84
  6. Step 6: Final answer
    x = 12,865.53

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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.