Home / 16,130.90-22,275.34-12,145.10

Finding the Fourth Proportional to 16,130.90, 22,275.34 and 12,145.10

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Solution

The fourth proportional to 16,130.90, 22,275.34 and 12,145.10 is: 16,771.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,130.90 : 22,275.34 = 12,145.10 : x
  2. Step 2: Convert to fraction form
    16,130.90/22,275.34 = 12,145.10/x
  3. Step 3: Cross multiply
    16,130.90x = 22,275.34 × 12,145.10
  4. Step 4: Simplify right side
    16,130.90x = 270,536,090.09
  5. Step 5: Solve for x
    x = 270,536,090.09/16,130.90
  6. Step 6: Final answer
    x = 16,771.29

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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.