Home / 10,120.71-15,182.48-2,725.41

Finding the Fourth Proportional to 10,120.71, 15,182.48 and 2,725.41

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Solution

The fourth proportional to 10,120.71, 15,182.48 and 2,725.41 is: 4,088.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.71 : 15,182.48 = 2,725.41 : x
  2. Step 2: Convert to fraction form
    10,120.71/15,182.48 = 2,725.41/x
  3. Step 3: Cross multiply
    10,120.71x = 15,182.48 × 2,725.41
  4. Step 4: Simplify right side
    10,120.71x = 41,378,482.82
  5. Step 5: Solve for x
    x = 41,378,482.82/10,120.71
  6. Step 6: Final answer
    x = 4,088.50

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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.