Home / 13,139.14-19,701.48-8,983.84

Finding the Fourth Proportional to 13,139.14, 19,701.48 and 8,983.84

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Solution

The fourth proportional to 13,139.14, 19,701.48 and 8,983.84 is: 13,470.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.14 : 19,701.48 = 8,983.84 : x
  2. Step 2: Convert to fraction form
    13,139.14/19,701.48 = 8,983.84/x
  3. Step 3: Cross multiply
    13,139.14x = 19,701.48 × 8,983.84
  4. Step 4: Simplify right side
    13,139.14x = 176,994,944.08
  5. Step 5: Solve for x
    x = 176,994,944.08/13,139.14
  6. Step 6: Final answer
    x = 13,470.82

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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.