Home / 15,842.19-21,864.53-9,126.51

Finding the Fourth Proportional to 15,842.19, 21,864.53 and 9,126.51

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Solution

The fourth proportional to 15,842.19, 21,864.53 and 9,126.51 is: 12,595.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,842.19 : 21,864.53 = 9,126.51 : x
  2. Step 2: Convert to fraction form
    15,842.19/21,864.53 = 9,126.51/x
  3. Step 3: Cross multiply
    15,842.19x = 21,864.53 × 9,126.51
  4. Step 4: Simplify right side
    15,842.19x = 199,546,806.06
  5. Step 5: Solve for x
    x = 199,546,806.06/15,842.19
  6. Step 6: Final answer
    x = 12,595.91

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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.