Home / 10,206.90-15,274.71-8,836.38

Finding the Fourth Proportional to 10,206.90, 15,274.71 and 8,836.38

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Solution

The fourth proportional to 10,206.90, 15,274.71 and 8,836.38 is: 13,223.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.90 : 15,274.71 = 8,836.38 : x
  2. Step 2: Convert to fraction form
    10,206.90/15,274.71 = 8,836.38/x
  3. Step 3: Cross multiply
    10,206.90x = 15,274.71 × 8,836.38
  4. Step 4: Simplify right side
    10,206.90x = 134,973,141.95
  5. Step 5: Solve for x
    x = 134,973,141.95/10,206.90
  6. Step 6: Final answer
    x = 13,223.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.