Home / 13,948.50-19,250.51-7,981.03

Finding the Fourth Proportional to 13,948.50, 19,250.51 and 7,981.03

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Solution

The fourth proportional to 13,948.50, 19,250.51 and 7,981.03 is: 11,014.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.50 : 19,250.51 = 7,981.03 : x
  2. Step 2: Convert to fraction form
    13,948.50/19,250.51 = 7,981.03/x
  3. Step 3: Cross multiply
    13,948.50x = 19,250.51 × 7,981.03
  4. Step 4: Simplify right side
    13,948.50x = 153,638,926.88
  5. Step 5: Solve for x
    x = 153,638,926.88/13,948.50
  6. Step 6: Final answer
    x = 11,014.72

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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.