Home / 10,206.09-15,309.15-5,010.75

Finding the Fourth Proportional to 10,206.09, 15,309.15 and 5,010.75

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Solution

The fourth proportional to 10,206.09, 15,309.15 and 5,010.75 is: 7,516.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.09 : 15,309.15 = 5,010.75 : x
  2. Step 2: Convert to fraction form
    10,206.09/15,309.15 = 5,010.75/x
  3. Step 3: Cross multiply
    10,206.09x = 15,309.15 × 5,010.75
  4. Step 4: Simplify right side
    10,206.09x = 76,710,323.36
  5. Step 5: Solve for x
    x = 76,710,323.36/10,206.09
  6. Step 6: Final answer
    x = 7,516.13

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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.