Home / 13,293.25-18,341.47-8,755.45

Finding the Fourth Proportional to 13,293.25, 18,341.47 and 8,755.45

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Solution

The fourth proportional to 13,293.25, 18,341.47 and 8,755.45 is: 12,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.25 : 18,341.47 = 8,755.45 : x
  2. Step 2: Convert to fraction form
    13,293.25/18,341.47 = 8,755.45/x
  3. Step 3: Cross multiply
    13,293.25x = 18,341.47 × 8,755.45
  4. Step 4: Simplify right side
    13,293.25x = 160,587,709.92
  5. Step 5: Solve for x
    x = 160,587,709.92/13,293.25
  6. Step 6: Final answer
    x = 12,080.40

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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.