Home / 19,408.95-29,113.56-8,306.28

Finding the Fourth Proportional to 19,408.95, 29,113.56 and 8,306.28

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Solution

The fourth proportional to 19,408.95, 29,113.56 and 8,306.28 is: 12,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,408.95 : 29,113.56 = 8,306.28 : x
  2. Step 2: Convert to fraction form
    19,408.95/29,113.56 = 8,306.28/x
  3. Step 3: Cross multiply
    19,408.95x = 29,113.56 × 8,306.28
  4. Step 4: Simplify right side
    19,408.95x = 241,825,381.16
  5. Step 5: Solve for x
    x = 241,825,381.16/19,408.95
  6. Step 6: Final answer
    x = 12,459.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.