Home / 19,858.80-27,397.86-13,056.48

Finding the Fourth Proportional to 19,858.80, 27,397.86 and 13,056.48

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Solution

The fourth proportional to 19,858.80, 27,397.86 and 13,056.48 is: 18,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.80 : 27,397.86 = 13,056.48 : x
  2. Step 2: Convert to fraction form
    19,858.80/27,397.86 = 13,056.48/x
  3. Step 3: Cross multiply
    19,858.80x = 27,397.86 × 13,056.48
  4. Step 4: Simplify right side
    19,858.80x = 357,719,611.13
  5. Step 5: Solve for x
    x = 357,719,611.13/19,858.80
  6. Step 6: Final answer
    x = 18,013.15

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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.