Home / 14,207.89-19,615.30-12,631.63

Finding the Fourth Proportional to 14,207.89, 19,615.30 and 12,631.63

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Solution

The fourth proportional to 14,207.89, 19,615.30 and 12,631.63 is: 17,439.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,207.89 : 19,615.30 = 12,631.63 : x
  2. Step 2: Convert to fraction form
    14,207.89/19,615.30 = 12,631.63/x
  3. Step 3: Cross multiply
    14,207.89x = 19,615.30 × 12,631.63
  4. Step 4: Simplify right side
    14,207.89x = 247,773,211.94
  5. Step 5: Solve for x
    x = 247,773,211.94/14,207.89
  6. Step 6: Final answer
    x = 17,439.13

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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.