Home / 10,008.09-15,012.81-2,612.79

Finding the Fourth Proportional to 10,008.09, 15,012.81 and 2,612.79

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Solution

The fourth proportional to 10,008.09, 15,012.81 and 2,612.79 is: 3,919.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.09 : 15,012.81 = 2,612.79 : x
  2. Step 2: Convert to fraction form
    10,008.09/15,012.81 = 2,612.79/x
  3. Step 3: Cross multiply
    10,008.09x = 15,012.81 × 2,612.79
  4. Step 4: Simplify right side
    10,008.09x = 39,225,319.84
  5. Step 5: Solve for x
    x = 39,225,319.84/10,008.09
  6. Step 6: Final answer
    x = 3,919.36

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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.