Home / 15,077.08-20,787.25-10,775.31

Finding the Fourth Proportional to 15,077.08, 20,787.25 and 10,775.31

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Solution

The fourth proportional to 15,077.08, 20,787.25 and 10,775.31 is: 14,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.08 : 20,787.25 = 10,775.31 : x
  2. Step 2: Convert to fraction form
    15,077.08/20,787.25 = 10,775.31/x
  3. Step 3: Cross multiply
    15,077.08x = 20,787.25 × 10,775.31
  4. Step 4: Simplify right side
    15,077.08x = 223,989,062.80
  5. Step 5: Solve for x
    x = 223,989,062.80/15,077.08
  6. Step 6: Final answer
    x = 14,856.26

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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.