Home / 18,944.88-28,417.32-6,630

Finding the Fourth Proportional to 18,944.88, 28,417.32 and 6,630

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Solution

The fourth proportional to 18,944.88, 28,417.32 and 6,630 is: 9,945

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.88 : 28,417.32 = 6,630 : x
  2. Step 2: Convert to fraction form
    18,944.88/28,417.32 = 6,630/x
  3. Step 3: Cross multiply
    18,944.88x = 28,417.32 × 6,630
  4. Step 4: Simplify right side
    18,944.88x = 188,406,831.60
  5. Step 5: Solve for x
    x = 188,406,831.60/18,944.88
  6. Step 6: Final answer
    x = 9,945

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.