Home / 13,531.36-18,653.42-8,750.94

Finding the Fourth Proportional to 13,531.36, 18,653.42 and 8,750.94

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Solution

The fourth proportional to 13,531.36, 18,653.42 and 8,750.94 is: 12,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.36 : 18,653.42 = 8,750.94 : x
  2. Step 2: Convert to fraction form
    13,531.36/18,653.42 = 8,750.94/x
  3. Step 3: Cross multiply
    13,531.36x = 18,653.42 × 8,750.94
  4. Step 4: Simplify right side
    13,531.36x = 163,234,959.21
  5. Step 5: Solve for x
    x = 163,234,959.21/13,531.36
  6. Step 6: Final answer
    x = 12,063.46

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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.