Home / 7,339.08-10,133.78-6,779.36

Finding the Fourth Proportional to 7,339.08, 10,133.78 and 6,779.36

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Solution

The fourth proportional to 7,339.08, 10,133.78 and 6,779.36 is: 9,360.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.08 : 10,133.78 = 6,779.36 : x
  2. Step 2: Convert to fraction form
    7,339.08/10,133.78 = 6,779.36/x
  3. Step 3: Cross multiply
    7,339.08x = 10,133.78 × 6,779.36
  4. Step 4: Simplify right side
    7,339.08x = 68,700,542.78
  5. Step 5: Solve for x
    x = 68,700,542.78/7,339.08
  6. Step 6: Final answer
    x = 9,360.92

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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.