Home / 15,764.18-21,742.26-10,099.45

Finding the Fourth Proportional to 15,764.18, 21,742.26 and 10,099.45

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Solution

The fourth proportional to 15,764.18, 21,742.26 and 10,099.45 is: 13,929.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,764.18 : 21,742.26 = 10,099.45 : x
  2. Step 2: Convert to fraction form
    15,764.18/21,742.26 = 10,099.45/x
  3. Step 3: Cross multiply
    15,764.18x = 21,742.26 × 10,099.45
  4. Step 4: Simplify right side
    15,764.18x = 219,584,899.67
  5. Step 5: Solve for x
    x = 219,584,899.67/15,764.18
  6. Step 6: Final answer
    x = 13,929.36

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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.