Home / 13,972.17-19,285.71-8,310.93

Finding the Fourth Proportional to 13,972.17, 19,285.71 and 8,310.93

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Solution

The fourth proportional to 13,972.17, 19,285.71 and 8,310.93 is: 11,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.17 : 19,285.71 = 8,310.93 : x
  2. Step 2: Convert to fraction form
    13,972.17/19,285.71 = 8,310.93/x
  3. Step 3: Cross multiply
    13,972.17x = 19,285.71 × 8,310.93
  4. Step 4: Simplify right side
    13,972.17x = 160,282,185.81
  5. Step 5: Solve for x
    x = 160,282,185.81/13,972.17
  6. Step 6: Final answer
    x = 11,471.53

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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.