Home / 18,816.81-28,215.13-6,332.69

Finding the Fourth Proportional to 18,816.81, 28,215.13 and 6,332.69

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Solution

The fourth proportional to 18,816.81, 28,215.13 and 6,332.69 is: 9,495.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.81 : 28,215.13 = 6,332.69 : x
  2. Step 2: Convert to fraction form
    18,816.81/28,215.13 = 6,332.69/x
  3. Step 3: Cross multiply
    18,816.81x = 28,215.13 × 6,332.69
  4. Step 4: Simplify right side
    18,816.81x = 178,677,671.60
  5. Step 5: Solve for x
    x = 178,677,671.60/18,816.81
  6. Step 6: Final answer
    x = 9,495.64

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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.