Home / 11,172.16-15,416.52-6,695.08

Finding the Fourth Proportional to 11,172.16, 15,416.52 and 6,695.08

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Solution

The fourth proportional to 11,172.16, 15,416.52 and 6,695.08 is: 9,238.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.16 : 15,416.52 = 6,695.08 : x
  2. Step 2: Convert to fraction form
    11,172.16/15,416.52 = 6,695.08/x
  3. Step 3: Cross multiply
    11,172.16x = 15,416.52 × 6,695.08
  4. Step 4: Simplify right side
    11,172.16x = 103,214,834.72
  5. Step 5: Solve for x
    x = 103,214,834.72/11,172.16
  6. Step 6: Final answer
    x = 9,238.57

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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.