Home / 13,312.34-19,961.01-4,422.91

Finding the Fourth Proportional to 13,312.34, 19,961.01 and 4,422.91

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Solution

The fourth proportional to 13,312.34, 19,961.01 and 4,422.91 is: 6,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.34 : 19,961.01 = 4,422.91 : x
  2. Step 2: Convert to fraction form
    13,312.34/19,961.01 = 4,422.91/x
  3. Step 3: Cross multiply
    13,312.34x = 19,961.01 × 4,422.91
  4. Step 4: Simplify right side
    13,312.34x = 88,285,700.84
  5. Step 5: Solve for x
    x = 88,285,700.84/13,312.34
  6. Step 6: Final answer
    x = 6,631.87

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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.