Home / 10,779.24-16,160.80-7,437.95

Finding the Fourth Proportional to 10,779.24, 16,160.80 and 7,437.95

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Solution

The fourth proportional to 10,779.24, 16,160.80 and 7,437.95 is: 11,151.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.24 : 16,160.80 = 7,437.95 : x
  2. Step 2: Convert to fraction form
    10,779.24/16,160.80 = 7,437.95/x
  3. Step 3: Cross multiply
    10,779.24x = 16,160.80 × 7,437.95
  4. Step 4: Simplify right side
    10,779.24x = 120,203,288.41
  5. Step 5: Solve for x
    x = 120,203,288.41/10,779.24
  6. Step 6: Final answer
    x = 11,151.37

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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.