Home / 15,512.24-21,408-8,798.45

Finding the Fourth Proportional to 15,512.24, 21,408 and 8,798.45

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Solution

The fourth proportional to 15,512.24, 21,408 and 8,798.45 is: 12,142.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.24 : 21,408 = 8,798.45 : x
  2. Step 2: Convert to fraction form
    15,512.24/21,408 = 8,798.45/x
  3. Step 3: Cross multiply
    15,512.24x = 21,408 × 8,798.45
  4. Step 4: Simplify right side
    15,512.24x = 188,357,110.56
  5. Step 5: Solve for x
    x = 188,357,110.56/15,512.24
  6. Step 6: Final answer
    x = 12,142.49

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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.