Home / 11,434.26-15,779.86-6,720.06

Finding the Fourth Proportional to 11,434.26, 15,779.86 and 6,720.06

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Solution

The fourth proportional to 11,434.26, 15,779.86 and 6,720.06 is: 9,274.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.26 : 15,779.86 = 6,720.06 : x
  2. Step 2: Convert to fraction form
    11,434.26/15,779.86 = 6,720.06/x
  3. Step 3: Cross multiply
    11,434.26x = 15,779.86 × 6,720.06
  4. Step 4: Simplify right side
    11,434.26x = 106,041,605.99
  5. Step 5: Solve for x
    x = 106,041,605.99/11,434.26
  6. Step 6: Final answer
    x = 9,274.02

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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.