Home / 15,304.94-21,122.01-8,590.14

Finding the Fourth Proportional to 15,304.94, 21,122.01 and 8,590.14

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Solution

The fourth proportional to 15,304.94, 21,122.01 and 8,590.14 is: 11,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,304.94 : 21,122.01 = 8,590.14 : x
  2. Step 2: Convert to fraction form
    15,304.94/21,122.01 = 8,590.14/x
  3. Step 3: Cross multiply
    15,304.94x = 21,122.01 × 8,590.14
  4. Step 4: Simplify right side
    15,304.94x = 181,441,022.98
  5. Step 5: Solve for x
    x = 181,441,022.98/15,304.94
  6. Step 6: Final answer
    x = 11,855.07

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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.