Home / 13,129.06-18,117.37-7,463.02

Finding the Fourth Proportional to 13,129.06, 18,117.37 and 7,463.02

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Solution

The fourth proportional to 13,129.06, 18,117.37 and 7,463.02 is: 10,298.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.06 : 18,117.37 = 7,463.02 : x
  2. Step 2: Convert to fraction form
    13,129.06/18,117.37 = 7,463.02/x
  3. Step 3: Cross multiply
    13,129.06x = 18,117.37 × 7,463.02
  4. Step 4: Simplify right side
    13,129.06x = 135,210,294.66
  5. Step 5: Solve for x
    x = 135,210,294.66/13,129.06
  6. Step 6: Final answer
    x = 10,298.55

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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.