Home / 13,335.35-18,403.15-7,367.40

Finding the Fourth Proportional to 13,335.35, 18,403.15 and 7,367.40

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Solution

The fourth proportional to 13,335.35, 18,403.15 and 7,367.40 is: 10,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.35 : 18,403.15 = 7,367.40 : x
  2. Step 2: Convert to fraction form
    13,335.35/18,403.15 = 7,367.40/x
  3. Step 3: Cross multiply
    13,335.35x = 18,403.15 × 7,367.40
  4. Step 4: Simplify right side
    13,335.35x = 135,583,349.77
  5. Step 5: Solve for x
    x = 135,583,349.77/13,335.35
  6. Step 6: Final answer
    x = 10,167.22

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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.