Home / 18,117.50-27,180.15-5,637.26

Finding the Fourth Proportional to 18,117.50, 27,180.15 and 5,637.26

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Solution

The fourth proportional to 18,117.50, 27,180.15 and 5,637.26 is: 8,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.50 : 27,180.15 = 5,637.26 : x
  2. Step 2: Convert to fraction form
    18,117.50/27,180.15 = 5,637.26/x
  3. Step 3: Cross multiply
    18,117.50x = 27,180.15 × 5,637.26
  4. Step 4: Simplify right side
    18,117.50x = 153,221,572.39
  5. Step 5: Solve for x
    x = 153,221,572.39/18,117.50
  6. Step 6: Final answer
    x = 8,457.10

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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.