Home / 15,408.56-21,263.82-8,335.00

Finding the Fourth Proportional to 15,408.56, 21,263.82 and 8,335.00

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Solution

The fourth proportional to 15,408.56, 21,263.82 and 8,335.00 is: 11,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.56 : 21,263.82 = 8,335.00 : x
  2. Step 2: Convert to fraction form
    15,408.56/21,263.82 = 8,335.00/x
  3. Step 3: Cross multiply
    15,408.56x = 21,263.82 × 8,335.00
  4. Step 4: Simplify right side
    15,408.56x = 177,233,935.02
  5. Step 5: Solve for x
    x = 177,233,935.02/15,408.56
  6. Step 6: Final answer
    x = 11,502.30

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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.