Home / 15,568.25-21,479.18-9,195.08

Finding the Fourth Proportional to 15,568.25, 21,479.18 and 9,195.08

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Solution

The fourth proportional to 15,568.25, 21,479.18 and 9,195.08 is: 12,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,568.25 : 21,479.18 = 9,195.08 : x
  2. Step 2: Convert to fraction form
    15,568.25/21,479.18 = 9,195.08/x
  3. Step 3: Cross multiply
    15,568.25x = 21,479.18 × 9,195.08
  4. Step 4: Simplify right side
    15,568.25x = 197,502,625.06
  5. Step 5: Solve for x
    x = 197,502,625.06/15,568.25
  6. Step 6: Final answer
    x = 12,686.25

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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.