Home / 10,585.12-15,877.71-2,687.64

Finding the Fourth Proportional to 10,585.12, 15,877.71 and 2,687.64

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Solution

The fourth proportional to 10,585.12, 15,877.71 and 2,687.64 is: 4,031.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,585.12 : 15,877.71 = 2,687.64 : x
  2. Step 2: Convert to fraction form
    10,585.12/15,877.71 = 2,687.64/x
  3. Step 3: Cross multiply
    10,585.12x = 15,877.71 × 2,687.64
  4. Step 4: Simplify right side
    10,585.12x = 42,673,568.50
  5. Step 5: Solve for x
    x = 42,673,568.50/10,585.12
  6. Step 6: Final answer
    x = 4,031.47

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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.