Home / 14,694.31-22,071.30-12,978.20

Finding the Fourth Proportional to 14,694.31, 22,071.30 and 12,978.20

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Solution

The fourth proportional to 14,694.31, 22,071.30 and 12,978.20 is: 19,493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,694.31 : 22,071.30 = 12,978.20 : x
  2. Step 2: Convert to fraction form
    14,694.31/22,071.30 = 12,978.20/x
  3. Step 3: Cross multiply
    14,694.31x = 22,071.30 × 12,978.20
  4. Step 4: Simplify right side
    14,694.31x = 286,445,800.84
  5. Step 5: Solve for x
    x = 286,445,800.84/14,694.31
  6. Step 6: Final answer
    x = 19,493.66

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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.