Home / 13,972.32-19,280.18-8,003.63

Finding the Fourth Proportional to 13,972.32, 19,280.18 and 8,003.63

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Solution

The fourth proportional to 13,972.32, 19,280.18 and 8,003.63 is: 11,044.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.32 : 19,280.18 = 8,003.63 : x
  2. Step 2: Convert to fraction form
    13,972.32/19,280.18 = 8,003.63/x
  3. Step 3: Cross multiply
    13,972.32x = 19,280.18 × 8,003.63
  4. Step 4: Simplify right side
    13,972.32x = 154,311,427.05
  5. Step 5: Solve for x
    x = 154,311,427.05/13,972.32
  6. Step 6: Final answer
    x = 11,044.08

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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.