Home / 15,302.07-21,119.06-8,497.65

Finding the Fourth Proportional to 15,302.07, 21,119.06 and 8,497.65

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Solution

The fourth proportional to 15,302.07, 21,119.06 and 8,497.65 is: 11,727.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.07 : 21,119.06 = 8,497.65 : x
  2. Step 2: Convert to fraction form
    15,302.07/21,119.06 = 8,497.65/x
  3. Step 3: Cross multiply
    15,302.07x = 21,119.06 × 8,497.65
  4. Step 4: Simplify right side
    15,302.07x = 179,462,380.21
  5. Step 5: Solve for x
    x = 179,462,380.21/15,302.07
  6. Step 6: Final answer
    x = 11,727.98

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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.