Home / 18,681.66-25,802.82-13,637.70

Finding the Fourth Proportional to 18,681.66, 25,802.82 and 13,637.70

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Solution

The fourth proportional to 18,681.66, 25,802.82 and 13,637.70 is: 18,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.66 : 25,802.82 = 13,637.70 : x
  2. Step 2: Convert to fraction form
    18,681.66/25,802.82 = 13,637.70/x
  3. Step 3: Cross multiply
    18,681.66x = 25,802.82 × 13,637.70
  4. Step 4: Simplify right side
    18,681.66x = 351,891,118.31
  5. Step 5: Solve for x
    x = 351,891,118.31/18,681.66
  6. Step 6: Final answer
    x = 18,836.18

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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.