Home / 15,368.52-21,207.97-8,562.38

Finding the Fourth Proportional to 15,368.52, 21,207.97 and 8,562.38

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Solution

The fourth proportional to 15,368.52, 21,207.97 and 8,562.38 is: 11,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368.52 : 21,207.97 = 8,562.38 : x
  2. Step 2: Convert to fraction form
    15,368.52/21,207.97 = 8,562.38/x
  3. Step 3: Cross multiply
    15,368.52x = 21,207.97 × 8,562.38
  4. Step 4: Simplify right side
    15,368.52x = 181,590,698.17
  5. Step 5: Solve for x
    x = 181,590,698.17/15,368.52
  6. Step 6: Final answer
    x = 11,815.76

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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.