Home / 13,166.88-19,750.32-12,875.28

Finding the Fourth Proportional to 13,166.88, 19,750.32 and 12,875.28

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Solution

The fourth proportional to 13,166.88, 19,750.32 and 12,875.28 is: 19,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.88 : 19,750.32 = 12,875.28 : x
  2. Step 2: Convert to fraction form
    13,166.88/19,750.32 = 12,875.28/x
  3. Step 3: Cross multiply
    13,166.88x = 19,750.32 × 12,875.28
  4. Step 4: Simplify right side
    13,166.88x = 254,290,900.09
  5. Step 5: Solve for x
    x = 254,290,900.09/13,166.88
  6. Step 6: Final answer
    x = 19,312.92

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.