Home / 10,789.80-14,889.88-6,074.08

Finding the Fourth Proportional to 10,789.80, 14,889.88 and 6,074.08

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Solution

The fourth proportional to 10,789.80, 14,889.88 and 6,074.08 is: 8,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,789.80 : 14,889.88 = 6,074.08 : x
  2. Step 2: Convert to fraction form
    10,789.80/14,889.88 = 6,074.08/x
  3. Step 3: Cross multiply
    10,789.80x = 14,889.88 × 6,074.08
  4. Step 4: Simplify right side
    10,789.80x = 90,442,322.31
  5. Step 5: Solve for x
    x = 90,442,322.31/10,789.80
  6. Step 6: Final answer
    x = 8,382.21

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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.