Home / 15,564.69-21,479.27-8,850.14

Finding the Fourth Proportional to 15,564.69, 21,479.27 and 8,850.14

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Solution

The fourth proportional to 15,564.69, 21,479.27 and 8,850.14 is: 12,213.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,564.69 : 21,479.27 = 8,850.14 : x
  2. Step 2: Convert to fraction form
    15,564.69/21,479.27 = 8,850.14/x
  3. Step 3: Cross multiply
    15,564.69x = 21,479.27 × 8,850.14
  4. Step 4: Simplify right side
    15,564.69x = 190,094,394.95
  5. Step 5: Solve for x
    x = 190,094,394.95/15,564.69
  6. Step 6: Final answer
    x = 12,213.18

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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.