Home / 7,977.04-11,007.40-4,439.76

Finding the Fourth Proportional to 7,977.04, 11,007.40 and 4,439.76

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Solution

The fourth proportional to 7,977.04, 11,007.40 and 4,439.76 is: 6,126.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.04 : 11,007.40 = 4,439.76 : x
  2. Step 2: Convert to fraction form
    7,977.04/11,007.40 = 4,439.76/x
  3. Step 3: Cross multiply
    7,977.04x = 11,007.40 × 4,439.76
  4. Step 4: Simplify right side
    7,977.04x = 48,870,214.22
  5. Step 5: Solve for x
    x = 48,870,214.22/7,977.04
  6. Step 6: Final answer
    x = 6,126.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.