Home / 10,081.30-15,107.10-7,313.80

Finding the Fourth Proportional to 10,081.30, 15,107.10 and 7,313.80

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Solution

The fourth proportional to 10,081.30, 15,107.10 and 7,313.80 is: 10,959.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.30 : 15,107.10 = 7,313.80 : x
  2. Step 2: Convert to fraction form
    10,081.30/15,107.10 = 7,313.80/x
  3. Step 3: Cross multiply
    10,081.30x = 15,107.10 × 7,313.80
  4. Step 4: Simplify right side
    10,081.30x = 110,490,307.98
  5. Step 5: Solve for x
    x = 110,490,307.98/10,081.30
  6. Step 6: Final answer
    x = 10,959.93

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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.