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Finding the Fourth Proportional to 15,608.69, 21,522.47 and 9,934.45

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Solution

The fourth proportional to 15,608.69, 21,522.47 and 9,934.45 is: 13,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608.69 : 21,522.47 = 9,934.45 : x
  2. Step 2: Convert to fraction form
    15,608.69/21,522.47 = 9,934.45/x
  3. Step 3: Cross multiply
    15,608.69x = 21,522.47 × 9,934.45
  4. Step 4: Simplify right side
    15,608.69x = 213,813,868.46
  5. Step 5: Solve for x
    x = 213,813,868.46/15,608.69
  6. Step 6: Final answer
    x = 13,698.39

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Double scale
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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.