Home / 15,210.03-20,989.62-8,495.76

Finding the Fourth Proportional to 15,210.03, 20,989.62 and 8,495.76

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Solution

The fourth proportional to 15,210.03, 20,989.62 and 8,495.76 is: 11,724.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.03 : 20,989.62 = 8,495.76 : x
  2. Step 2: Convert to fraction form
    15,210.03/20,989.62 = 8,495.76/x
  3. Step 3: Cross multiply
    15,210.03x = 20,989.62 × 8,495.76
  4. Step 4: Simplify right side
    15,210.03x = 178,322,690.30
  5. Step 5: Solve for x
    x = 178,322,690.30/15,210.03
  6. Step 6: Final answer
    x = 11,724.02

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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.