Home / 15,114.60-20,856.69-8,741.32

Finding the Fourth Proportional to 15,114.60, 20,856.69 and 8,741.32

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Solution

The fourth proportional to 15,114.60, 20,856.69 and 8,741.32 is: 12,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.60 : 20,856.69 = 8,741.32 : x
  2. Step 2: Convert to fraction form
    15,114.60/20,856.69 = 8,741.32/x
  3. Step 3: Cross multiply
    15,114.60x = 20,856.69 × 8,741.32
  4. Step 4: Simplify right side
    15,114.60x = 182,314,949.29
  5. Step 5: Solve for x
    x = 182,314,949.29/15,114.60
  6. Step 6: Final answer
    x = 12,062.17

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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.