Home / 13,330.18-18,393.24-7,663.60

Finding the Fourth Proportional to 13,330.18, 18,393.24 and 7,663.60

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Solution

The fourth proportional to 13,330.18, 18,393.24 and 7,663.60 is: 10,574.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.18 : 18,393.24 = 7,663.60 : x
  2. Step 2: Convert to fraction form
    13,330.18/18,393.24 = 7,663.60/x
  3. Step 3: Cross multiply
    13,330.18x = 18,393.24 × 7,663.60
  4. Step 4: Simplify right side
    13,330.18x = 140,958,434.06
  5. Step 5: Solve for x
    x = 140,958,434.06/13,330.18
  6. Step 6: Final answer
    x = 10,574.38

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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.