Home / 7,938.83-11,907.77-3,555.11

Finding the Fourth Proportional to 7,938.83, 11,907.77 and 3,555.11

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Solution

The fourth proportional to 7,938.83, 11,907.77 and 3,555.11 is: 5,332.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.83 : 11,907.77 = 3,555.11 : x
  2. Step 2: Convert to fraction form
    7,938.83/11,907.77 = 3,555.11/x
  3. Step 3: Cross multiply
    7,938.83x = 11,907.77 × 3,555.11
  4. Step 4: Simplify right side
    7,938.83x = 42,333,432.20
  5. Step 5: Solve for x
    x = 42,333,432.20/7,938.83
  6. Step 6: Final answer
    x = 5,332.45

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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.