Home / 13,380.66-18,465.32-7,330.93

Finding the Fourth Proportional to 13,380.66, 18,465.32 and 7,330.93

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Solution

The fourth proportional to 13,380.66, 18,465.32 and 7,330.93 is: 10,116.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.66 : 18,465.32 = 7,330.93 : x
  2. Step 2: Convert to fraction form
    13,380.66/18,465.32 = 7,330.93/x
  3. Step 3: Cross multiply
    13,380.66x = 18,465.32 × 7,330.93
  4. Step 4: Simplify right side
    13,380.66x = 135,367,931.69
  5. Step 5: Solve for x
    x = 135,367,931.69/13,380.66
  6. Step 6: Final answer
    x = 10,116.68

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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.