Home / 10,156.14-14,015.54-5,618.87

Finding the Fourth Proportional to 10,156.14, 14,015.54 and 5,618.87

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Solution

The fourth proportional to 10,156.14, 14,015.54 and 5,618.87 is: 7,754.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,156.14 : 14,015.54 = 5,618.87 : x
  2. Step 2: Convert to fraction form
    10,156.14/14,015.54 = 5,618.87/x
  3. Step 3: Cross multiply
    10,156.14x = 14,015.54 × 5,618.87
  4. Step 4: Simplify right side
    10,156.14x = 78,751,497.24
  5. Step 5: Solve for x
    x = 78,751,497.24/10,156.14
  6. Step 6: Final answer
    x = 7,754.08

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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.