Home / 15,869.56-21,900.92-9,582.88

Finding the Fourth Proportional to 15,869.56, 21,900.92 and 9,582.88

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Solution

The fourth proportional to 15,869.56, 21,900.92 and 9,582.88 is: 13,224.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.56 : 21,900.92 = 9,582.88 : x
  2. Step 2: Convert to fraction form
    15,869.56/21,900.92 = 9,582.88/x
  3. Step 3: Cross multiply
    15,869.56x = 21,900.92 × 9,582.88
  4. Step 4: Simplify right side
    15,869.56x = 209,873,888.25
  5. Step 5: Solve for x
    x = 209,873,888.25/15,869.56
  6. Step 6: Final answer
    x = 13,224.93

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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.