Home / 14,418.38-21,643.98-9,678.06

Finding the Fourth Proportional to 14,418.38, 21,643.98 and 9,678.06

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Solution

The fourth proportional to 14,418.38, 21,643.98 and 9,678.06 is: 14,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.38 : 21,643.98 = 9,678.06 : x
  2. Step 2: Convert to fraction form
    14,418.38/21,643.98 = 9,678.06/x
  3. Step 3: Cross multiply
    14,418.38x = 21,643.98 × 9,678.06
  4. Step 4: Simplify right side
    14,418.38x = 209,471,737.08
  5. Step 5: Solve for x
    x = 209,471,737.08/14,418.38
  6. Step 6: Final answer
    x = 14,528.10

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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.