Home / 13,268.61-18,303.08-8,291.97

Finding the Fourth Proportional to 13,268.61, 18,303.08 and 8,291.97

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Solution

The fourth proportional to 13,268.61, 18,303.08 and 8,291.97 is: 11,438.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.61 : 18,303.08 = 8,291.97 : x
  2. Step 2: Convert to fraction form
    13,268.61/18,303.08 = 8,291.97/x
  3. Step 3: Cross multiply
    13,268.61x = 18,303.08 × 8,291.97
  4. Step 4: Simplify right side
    13,268.61x = 151,768,590.27
  5. Step 5: Solve for x
    x = 151,768,590.27/13,268.61
  6. Step 6: Final answer
    x = 11,438.17

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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.