Home / 13,944.16-19,240.05-7,977.82

Finding the Fourth Proportional to 13,944.16, 19,240.05 and 7,977.82

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Solution

The fourth proportional to 13,944.16, 19,240.05 and 7,977.82 is: 11,007.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.16 : 19,240.05 = 7,977.82 : x
  2. Step 2: Convert to fraction form
    13,944.16/19,240.05 = 7,977.82/x
  3. Step 3: Cross multiply
    13,944.16x = 19,240.05 × 7,977.82
  4. Step 4: Simplify right side
    13,944.16x = 153,493,655.69
  5. Step 5: Solve for x
    x = 153,493,655.69/13,944.16
  6. Step 6: Final answer
    x = 11,007.74

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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.