Home / 13,162.66-18,164.40-7,497.65

Finding the Fourth Proportional to 13,162.66, 18,164.40 and 7,497.65

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Solution

The fourth proportional to 13,162.66, 18,164.40 and 7,497.65 is: 10,346.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.66 : 18,164.40 = 7,497.65 : x
  2. Step 2: Convert to fraction form
    13,162.66/18,164.40 = 7,497.65/x
  3. Step 3: Cross multiply
    13,162.66x = 18,164.40 × 7,497.65
  4. Step 4: Simplify right side
    13,162.66x = 136,190,347.59
  5. Step 5: Solve for x
    x = 136,190,347.59/13,162.66
  6. Step 6: Final answer
    x = 10,346.72

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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.