Home / 12,268.61-18,402.84-7,339.63

Finding the Fourth Proportional to 12,268.61, 18,402.84 and 7,339.63

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Solution

The fourth proportional to 12,268.61, 18,402.84 and 7,339.63 is: 11,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.61 : 18,402.84 = 7,339.63 : x
  2. Step 2: Convert to fraction form
    12,268.61/18,402.84 = 7,339.63/x
  3. Step 3: Cross multiply
    12,268.61x = 18,402.84 × 7,339.63
  4. Step 4: Simplify right side
    12,268.61x = 135,070,036.55
  5. Step 5: Solve for x
    x = 135,070,036.55/12,268.61
  6. Step 6: Final answer
    x = 11,009.40

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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.