Home / 15,408.91-21,264.30-8,695.96

Finding the Fourth Proportional to 15,408.91, 21,264.30 and 8,695.96

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Solution

The fourth proportional to 15,408.91, 21,264.30 and 8,695.96 is: 12,000.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.91 : 21,264.30 = 8,695.96 : x
  2. Step 2: Convert to fraction form
    15,408.91/21,264.30 = 8,695.96/x
  3. Step 3: Cross multiply
    15,408.91x = 21,264.30 × 8,695.96
  4. Step 4: Simplify right side
    15,408.91x = 184,913,502.23
  5. Step 5: Solve for x
    x = 184,913,502.23/15,408.91
  6. Step 6: Final answer
    x = 12,000.43

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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.