Home / 18,307.86-27,442.94-7,210.05

Finding the Fourth Proportional to 18,307.86, 27,442.94 and 7,210.05

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Solution

The fourth proportional to 18,307.86, 27,442.94 and 7,210.05 is: 10,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.86 : 27,442.94 = 7,210.05 : x
  2. Step 2: Convert to fraction form
    18,307.86/27,442.94 = 7,210.05/x
  3. Step 3: Cross multiply
    18,307.86x = 27,442.94 × 7,210.05
  4. Step 4: Simplify right side
    18,307.86x = 197,864,933.50
  5. Step 5: Solve for x
    x = 197,864,933.50/18,307.86
  6. Step 6: Final answer
    x = 10,807.65

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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.