Home / 19,783.66-27,301.80-13,498.06

Finding the Fourth Proportional to 19,783.66, 27,301.80 and 13,498.06

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Solution

The fourth proportional to 19,783.66, 27,301.80 and 13,498.06 is: 18,627.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.66 : 27,301.80 = 13,498.06 : x
  2. Step 2: Convert to fraction form
    19,783.66/27,301.80 = 13,498.06/x
  3. Step 3: Cross multiply
    19,783.66x = 27,301.80 × 13,498.06
  4. Step 4: Simplify right side
    19,783.66x = 368,521,334.51
  5. Step 5: Solve for x
    x = 368,521,334.51/19,783.66
  6. Step 6: Final answer
    x = 18,627.56

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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.