Home / 18,823.81-28,225.62-6,339.70

Finding the Fourth Proportional to 18,823.81, 28,225.62 and 6,339.70

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Solution

The fourth proportional to 18,823.81, 28,225.62 and 6,339.70 is: 9,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.81 : 28,225.62 = 6,339.70 : x
  2. Step 2: Convert to fraction form
    18,823.81/28,225.62 = 6,339.70/x
  3. Step 3: Cross multiply
    18,823.81x = 28,225.62 × 6,339.70
  4. Step 4: Simplify right side
    18,823.81x = 178,941,963.11
  5. Step 5: Solve for x
    x = 178,941,963.11/18,823.81
  6. Step 6: Final answer
    x = 9,506.15

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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.