Home / 19,918.92-27,510.86-13,534.85

Finding the Fourth Proportional to 19,918.92, 27,510.86 and 13,534.85

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Solution

The fourth proportional to 19,918.92, 27,510.86 and 13,534.85 is: 18,693.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.92 : 27,510.86 = 13,534.85 : x
  2. Step 2: Convert to fraction form
    19,918.92/27,510.86 = 13,534.85/x
  3. Step 3: Cross multiply
    19,918.92x = 27,510.86 × 13,534.85
  4. Step 4: Simplify right side
    19,918.92x = 372,355,158.24
  5. Step 5: Solve for x
    x = 372,355,158.24/19,918.92
  6. Step 6: Final answer
    x = 18,693.54

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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.