Home / 15,408.54-21,264.75-8,693.46

Finding the Fourth Proportional to 15,408.54, 21,264.75 and 8,693.46

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Solution

The fourth proportional to 15,408.54, 21,264.75 and 8,693.46 is: 11,997.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.54 : 21,264.75 = 8,693.46 : x
  2. Step 2: Convert to fraction form
    15,408.54/21,264.75 = 8,693.46/x
  3. Step 3: Cross multiply
    15,408.54x = 21,264.75 × 8,693.46
  4. Step 4: Simplify right side
    15,408.54x = 184,864,253.54
  5. Step 5: Solve for x
    x = 184,864,253.54/15,408.54
  6. Step 6: Final answer
    x = 11,997.52

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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.