Home / 13,293.76-18,345.46-7,325.98

Finding the Fourth Proportional to 13,293.76, 18,345.46 and 7,325.98

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Solution

The fourth proportional to 13,293.76, 18,345.46 and 7,325.98 is: 10,109.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.76 : 18,345.46 = 7,325.98 : x
  2. Step 2: Convert to fraction form
    13,293.76/18,345.46 = 7,325.98/x
  3. Step 3: Cross multiply
    13,293.76x = 18,345.46 × 7,325.98
  4. Step 4: Simplify right side
    13,293.76x = 134,398,473.05
  5. Step 5: Solve for x
    x = 134,398,473.05/13,293.76
  6. Step 6: Final answer
    x = 10,109.89

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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.