Home / 15,433.61-21,298.35-8,360.03

Finding the Fourth Proportional to 15,433.61, 21,298.35 and 8,360.03

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Solution

The fourth proportional to 15,433.61, 21,298.35 and 8,360.03 is: 11,536.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.61 : 21,298.35 = 8,360.03 : x
  2. Step 2: Convert to fraction form
    15,433.61/21,298.35 = 8,360.03/x
  3. Step 3: Cross multiply
    15,433.61x = 21,298.35 × 8,360.03
  4. Step 4: Simplify right side
    15,433.61x = 178,054,738.46
  5. Step 5: Solve for x
    x = 178,054,738.46/15,433.61
  6. Step 6: Final answer
    x = 11,536.82

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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.