Home / 15,408.99-21,264.26-8,335.26

Finding the Fourth Proportional to 15,408.99, 21,264.26 and 8,335.26

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Solution

The fourth proportional to 15,408.99, 21,264.26 and 8,335.26 is: 11,502.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.99 : 21,264.26 = 8,335.26 : x
  2. Step 2: Convert to fraction form
    15,408.99/21,264.26 = 8,335.26/x
  3. Step 3: Cross multiply
    15,408.99x = 21,264.26 × 8,335.26
  4. Step 4: Simplify right side
    15,408.99x = 177,243,094.13
  5. Step 5: Solve for x
    x = 177,243,094.13/15,408.99
  6. Step 6: Final answer
    x = 11,502.58

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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.