Home / 18,117.72-27,180.45-5,637.51

Finding the Fourth Proportional to 18,117.72, 27,180.45 and 5,637.51

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Solution

The fourth proportional to 18,117.72, 27,180.45 and 5,637.51 is: 8,457.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.72 : 27,180.45 = 5,637.51 : x
  2. Step 2: Convert to fraction form
    18,117.72/27,180.45 = 5,637.51/x
  3. Step 3: Cross multiply
    18,117.72x = 27,180.45 × 5,637.51
  4. Step 4: Simplify right side
    18,117.72x = 153,230,058.68
  5. Step 5: Solve for x
    x = 153,230,058.68/18,117.72
  6. Step 6: Final answer
    x = 8,457.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.