Home / 15,408.29-21,263.45-8,695.35

Finding the Fourth Proportional to 15,408.29, 21,263.45 and 8,695.35

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Solution

The fourth proportional to 15,408.29, 21,263.45 and 8,695.35 is: 11,999.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.29 : 21,263.45 = 8,695.35 : x
  2. Step 2: Convert to fraction form
    15,408.29/21,263.45 = 8,695.35/x
  3. Step 3: Cross multiply
    15,408.29x = 21,263.45 × 8,695.35
  4. Step 4: Simplify right side
    15,408.29x = 184,893,096.48
  5. Step 5: Solve for x
    x = 184,893,096.48/15,408.29
  6. Step 6: Final answer
    x = 11,999.58

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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.