Home / 12,715.31-19,069.54-5,318.24

Finding the Fourth Proportional to 12,715.31, 19,069.54 and 5,318.24

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Solution

The fourth proportional to 12,715.31, 19,069.54 and 5,318.24 is: 7,975.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.31 : 19,069.54 = 5,318.24 : x
  2. Step 2: Convert to fraction form
    12,715.31/19,069.54 = 5,318.24/x
  3. Step 3: Cross multiply
    12,715.31x = 19,069.54 × 5,318.24
  4. Step 4: Simplify right side
    12,715.31x = 101,416,268.47
  5. Step 5: Solve for x
    x = 101,416,268.47/12,715.31
  6. Step 6: Final answer
    x = 7,975.92

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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.