Home / 15,408.74-21,263.91-8,335.01

Finding the Fourth Proportional to 15,408.74, 21,263.91 and 8,335.01

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Solution

The fourth proportional to 15,408.74, 21,263.91 and 8,335.01 is: 11,502.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.74 : 21,263.91 = 8,335.01 : x
  2. Step 2: Convert to fraction form
    15,408.74/21,263.91 = 8,335.01/x
  3. Step 3: Cross multiply
    15,408.74x = 21,263.91 × 8,335.01
  4. Step 4: Simplify right side
    15,408.74x = 177,234,902.49
  5. Step 5: Solve for x
    x = 177,234,902.49/15,408.74
  6. Step 6: Final answer
    x = 11,502.23

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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.