Home / 15,827.13-21,842.10-9,112.59

Finding the Fourth Proportional to 15,827.13, 21,842.10 and 9,112.59

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Solution

The fourth proportional to 15,827.13, 21,842.10 and 9,112.59 is: 12,575.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,827.13 : 21,842.10 = 9,112.59 : x
  2. Step 2: Convert to fraction form
    15,827.13/21,842.10 = 9,112.59/x
  3. Step 3: Cross multiply
    15,827.13x = 21,842.10 × 9,112.59
  4. Step 4: Simplify right side
    15,827.13x = 199,038,102.04
  5. Step 5: Solve for x
    x = 199,038,102.04/15,827.13
  6. Step 6: Final answer
    x = 12,575.75

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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.