Home / 10,984.90-15,159.23-6,139.63

Finding the Fourth Proportional to 10,984.90, 15,159.23 and 6,139.63

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Solution

The fourth proportional to 10,984.90, 15,159.23 and 6,139.63 is: 8,472.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,984.90 : 15,159.23 = 6,139.63 : x
  2. Step 2: Convert to fraction form
    10,984.90/15,159.23 = 6,139.63/x
  3. Step 3: Cross multiply
    10,984.90x = 15,159.23 × 6,139.63
  4. Step 4: Simplify right side
    10,984.90x = 93,072,063.28
  5. Step 5: Solve for x
    x = 93,072,063.28/10,984.90
  6. Step 6: Final answer
    x = 8,472.73

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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.