Home / 14,398.28-19,869.54-8,112.68

Finding the Fourth Proportional to 14,398.28, 19,869.54 and 8,112.68

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Solution

The fourth proportional to 14,398.28, 19,869.54 and 8,112.68 is: 11,195.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,398.28 : 19,869.54 = 8,112.68 : x
  2. Step 2: Convert to fraction form
    14,398.28/19,869.54 = 8,112.68/x
  3. Step 3: Cross multiply
    14,398.28x = 19,869.54 × 8,112.68
  4. Step 4: Simplify right side
    14,398.28x = 161,195,219.77
  5. Step 5: Solve for x
    x = 161,195,219.77/14,398.28
  6. Step 6: Final answer
    x = 11,195.45

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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.