Home / 15,408.64-21,263.94-8,335.03

Finding the Fourth Proportional to 15,408.64, 21,263.94 and 8,335.03

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Solution

The fourth proportional to 15,408.64, 21,263.94 and 8,335.03 is: 11,502.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.64 : 21,263.94 = 8,335.03 : x
  2. Step 2: Convert to fraction form
    15,408.64/21,263.94 = 8,335.03/x
  3. Step 3: Cross multiply
    15,408.64x = 21,263.94 × 8,335.03
  4. Step 4: Simplify right side
    15,408.64x = 177,235,577.82
  5. Step 5: Solve for x
    x = 177,235,577.82/15,408.64
  6. Step 6: Final answer
    x = 11,502.35

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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.