Home / 18,011.12-26,987.52-13,637.12

Finding the Fourth Proportional to 18,011.12, 26,987.52 and 13,637.12

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Solution

The fourth proportional to 18,011.12, 26,987.52 and 13,637.12 is: 20,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,011.12 : 26,987.52 = 13,637.12 : x
  2. Step 2: Convert to fraction form
    18,011.12/26,987.52 = 13,637.12/x
  3. Step 3: Cross multiply
    18,011.12x = 26,987.52 × 13,637.12
  4. Step 4: Simplify right side
    18,011.12x = 368,032,048.74
  5. Step 5: Solve for x
    x = 368,032,048.74/18,011.12
  6. Step 6: Final answer
    x = 20,433.60

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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.