Home / 12,643.32-18,943.92-8,927.58

Finding the Fourth Proportional to 12,643.32, 18,943.92 and 8,927.58

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Solution

The fourth proportional to 12,643.32, 18,943.92 and 8,927.58 is: 13,376.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.32 : 18,943.92 = 8,927.58 : x
  2. Step 2: Convert to fraction form
    12,643.32/18,943.92 = 8,927.58/x
  3. Step 3: Cross multiply
    12,643.32x = 18,943.92 × 8,927.58
  4. Step 4: Simplify right side
    12,643.32x = 169,123,361.31
  5. Step 5: Solve for x
    x = 169,123,361.31/12,643.32
  6. Step 6: Final answer
    x = 13,376.50

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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.