Home / 17,987.11-26,980.67-4,840.81

Finding the Fourth Proportional to 17,987.11, 26,980.67 and 4,840.81

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Solution

The fourth proportional to 17,987.11, 26,980.67 and 4,840.81 is: 7,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.11 : 26,980.67 = 4,840.81 : x
  2. Step 2: Convert to fraction form
    17,987.11/26,980.67 = 4,840.81/x
  3. Step 3: Cross multiply
    17,987.11x = 26,980.67 × 4,840.81
  4. Step 4: Simplify right side
    17,987.11x = 130,608,241.79
  5. Step 5: Solve for x
    x = 130,608,241.79/17,987.11
  6. Step 6: Final answer
    x = 7,261.21

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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.