Home / 10,912.93-15,055.27-6,718.75

Finding the Fourth Proportional to 10,912.93, 15,055.27 and 6,718.75

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Solution

The fourth proportional to 10,912.93, 15,055.27 and 6,718.75 is: 9,269.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.93 : 15,055.27 = 6,718.75 : x
  2. Step 2: Convert to fraction form
    10,912.93/15,055.27 = 6,718.75/x
  3. Step 3: Cross multiply
    10,912.93x = 15,055.27 × 6,718.75
  4. Step 4: Simplify right side
    10,912.93x = 101,152,595.31
  5. Step 5: Solve for x
    x = 101,152,595.31/10,912.93
  6. Step 6: Final answer
    x = 9,269.06

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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.