Home / 11,172.57-15,417.84-6,136.74

Finding the Fourth Proportional to 11,172.57, 15,417.84 and 6,136.74

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Solution

The fourth proportional to 11,172.57, 15,417.84 and 6,136.74 is: 8,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.57 : 15,417.84 = 6,136.74 : x
  2. Step 2: Convert to fraction form
    11,172.57/15,417.84 = 6,136.74/x
  3. Step 3: Cross multiply
    11,172.57x = 15,417.84 × 6,136.74
  4. Step 4: Simplify right side
    11,172.57x = 94,615,275.44
  5. Step 5: Solve for x
    x = 94,615,275.44/11,172.57
  6. Step 6: Final answer
    x = 8,468.53

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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.