Home / 15,764.68-21,742.95-10,099.95

Finding the Fourth Proportional to 15,764.68, 21,742.95 and 10,099.95

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Solution

The fourth proportional to 15,764.68, 21,742.95 and 10,099.95 is: 13,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,764.68 : 21,742.95 = 10,099.95 : x
  2. Step 2: Convert to fraction form
    15,764.68/21,742.95 = 10,099.95/x
  3. Step 3: Cross multiply
    15,764.68x = 21,742.95 × 10,099.95
  4. Step 4: Simplify right side
    15,764.68x = 219,602,707.85
  5. Step 5: Solve for x
    x = 219,602,707.85/15,764.68
  6. Step 6: Final answer
    x = 13,930.05

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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.