Home / 14,298.90-19,727.75-8,631.49

Finding the Fourth Proportional to 14,298.90, 19,727.75 and 8,631.49

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Solution

The fourth proportional to 14,298.90, 19,727.75 and 8,631.49 is: 11,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,298.90 : 19,727.75 = 8,631.49 : x
  2. Step 2: Convert to fraction form
    14,298.90/19,727.75 = 8,631.49/x
  3. Step 3: Cross multiply
    14,298.90x = 19,727.75 × 8,631.49
  4. Step 4: Simplify right side
    14,298.90x = 170,279,876.85
  5. Step 5: Solve for x
    x = 170,279,876.85/14,298.90
  6. Step 6: Final answer
    x = 11,908.60

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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.