Home / 12,376.30-18,560.13-4,978.84

Finding the Fourth Proportional to 12,376.30, 18,560.13 and 4,978.84

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Solution

The fourth proportional to 12,376.30, 18,560.13 and 4,978.84 is: 7,466.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.30 : 18,560.13 = 4,978.84 : x
  2. Step 2: Convert to fraction form
    12,376.30/18,560.13 = 4,978.84/x
  3. Step 3: Cross multiply
    12,376.30x = 18,560.13 × 4,978.84
  4. Step 4: Simplify right side
    12,376.30x = 92,407,892.76
  5. Step 5: Solve for x
    x = 92,407,892.76/12,376.30
  6. Step 6: Final answer
    x = 7,466.52

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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.