Home / 13,648.32-18,828-8,333.94

Finding the Fourth Proportional to 13,648.32, 18,828 and 8,333.94

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Solution

The fourth proportional to 13,648.32, 18,828 and 8,333.94 is: 11,496.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.32 : 18,828 = 8,333.94 : x
  2. Step 2: Convert to fraction form
    13,648.32/18,828 = 8,333.94/x
  3. Step 3: Cross multiply
    13,648.32x = 18,828 × 8,333.94
  4. Step 4: Simplify right side
    13,648.32x = 156,911,422.32
  5. Step 5: Solve for x
    x = 156,911,422.32/13,648.32
  6. Step 6: Final answer
    x = 11,496.76

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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.