Home / 10,445.58-15,670.12-5,180.85

Finding the Fourth Proportional to 10,445.58, 15,670.12 and 5,180.85

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Solution

The fourth proportional to 10,445.58, 15,670.12 and 5,180.85 is: 7,772.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.58 : 15,670.12 = 5,180.85 : x
  2. Step 2: Convert to fraction form
    10,445.58/15,670.12 = 5,180.85/x
  3. Step 3: Cross multiply
    10,445.58x = 15,670.12 × 5,180.85
  4. Step 4: Simplify right side
    10,445.58x = 81,184,541.20
  5. Step 5: Solve for x
    x = 81,184,541.20/10,445.58
  6. Step 6: Final answer
    x = 7,772.14

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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.