Home / 17,121.99-23,621.83-12,656.46

Finding the Fourth Proportional to 17,121.99, 23,621.83 and 12,656.46

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Solution

The fourth proportional to 17,121.99, 23,621.83 and 12,656.46 is: 17,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,121.99 : 23,621.83 = 12,656.46 : x
  2. Step 2: Convert to fraction form
    17,121.99/23,621.83 = 12,656.46/x
  3. Step 3: Cross multiply
    17,121.99x = 23,621.83 × 12,656.46
  4. Step 4: Simplify right side
    17,121.99x = 298,968,746.52
  5. Step 5: Solve for x
    x = 298,968,746.52/17,121.99
  6. Step 6: Final answer
    x = 17,461.10

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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.