Home / 10,012.68-13,822.32-6,661.08

Finding the Fourth Proportional to 10,012.68, 13,822.32 and 6,661.08

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Solution

The fourth proportional to 10,012.68, 13,822.32 and 6,661.08 is: 9,195.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,012.68 : 13,822.32 = 6,661.08 : x
  2. Step 2: Convert to fraction form
    10,012.68/13,822.32 = 6,661.08/x
  3. Step 3: Cross multiply
    10,012.68x = 13,822.32 × 6,661.08
  4. Step 4: Simplify right side
    10,012.68x = 92,071,579.31
  5. Step 5: Solve for x
    x = 92,071,579.31/10,012.68
  6. Step 6: Final answer
    x = 9,195.50

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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.