Home / 14,238.90-21,356.31-8,957.82

Finding the Fourth Proportional to 14,238.90, 21,356.31 and 8,957.82

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Solution

The fourth proportional to 14,238.90, 21,356.31 and 8,957.82 is: 13,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,238.90 : 21,356.31 = 8,957.82 : x
  2. Step 2: Convert to fraction form
    14,238.90/21,356.31 = 8,957.82/x
  3. Step 3: Cross multiply
    14,238.90x = 21,356.31 × 8,957.82
  4. Step 4: Simplify right side
    14,238.90x = 191,305,980.84
  5. Step 5: Solve for x
    x = 191,305,980.84/14,238.90
  6. Step 6: Final answer
    x = 13,435.45

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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.