Home / 15,837.93-21,857.13-9,124.65

Finding the Fourth Proportional to 15,837.93, 21,857.13 and 9,124.65

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Solution

The fourth proportional to 15,837.93, 21,857.13 and 9,124.65 is: 12,592.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,837.93 : 21,857.13 = 9,124.65 : x
  2. Step 2: Convert to fraction form
    15,837.93/21,857.13 = 9,124.65/x
  3. Step 3: Cross multiply
    15,837.93x = 21,857.13 × 9,124.65
  4. Step 4: Simplify right side
    15,837.93x = 199,438,661.25
  5. Step 5: Solve for x
    x = 199,438,661.25/15,837.93
  6. Step 6: Final answer
    x = 12,592.47

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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.