Home / 9,172.08-12,656.70-5,395.41

Finding the Fourth Proportional to 9,172.08, 12,656.70 and 5,395.41

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Solution

The fourth proportional to 9,172.08, 12,656.70 and 5,395.41 is: 7,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.08 : 12,656.70 = 5,395.41 : x
  2. Step 2: Convert to fraction form
    9,172.08/12,656.70 = 5,395.41/x
  3. Step 3: Cross multiply
    9,172.08x = 12,656.70 × 5,395.41
  4. Step 4: Simplify right side
    9,172.08x = 68,288,085.75
  5. Step 5: Solve for x
    x = 68,288,085.75/9,172.08
  6. Step 6: Final answer
    x = 7,445.21

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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.