Home / 13,972.14-19,281.18-7,923.49

Finding the Fourth Proportional to 13,972.14, 19,281.18 and 7,923.49

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Solution

The fourth proportional to 13,972.14, 19,281.18 and 7,923.49 is: 10,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.14 : 19,281.18 = 7,923.49 : x
  2. Step 2: Convert to fraction form
    13,972.14/19,281.18 = 7,923.49/x
  3. Step 3: Cross multiply
    13,972.14x = 19,281.18 × 7,923.49
  4. Step 4: Simplify right side
    13,972.14x = 152,774,236.92
  5. Step 5: Solve for x
    x = 152,774,236.92/13,972.14
  6. Step 6: Final answer
    x = 10,934.20

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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.