Home / 13,077.35-18,046.85-7,109.01

Finding the Fourth Proportional to 13,077.35, 18,046.85 and 7,109.01

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Solution

The fourth proportional to 13,077.35, 18,046.85 and 7,109.01 is: 9,810.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.35 : 18,046.85 = 7,109.01 : x
  2. Step 2: Convert to fraction form
    13,077.35/18,046.85 = 7,109.01/x
  3. Step 3: Cross multiply
    13,077.35x = 18,046.85 × 7,109.01
  4. Step 4: Simplify right side
    13,077.35x = 128,295,201.57
  5. Step 5: Solve for x
    x = 128,295,201.57/13,077.35
  6. Step 6: Final answer
    x = 9,810.49

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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.