Home / 13,162.90-18,166.04-7,195.45

Finding the Fourth Proportional to 13,162.90, 18,166.04 and 7,195.45

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Solution

The fourth proportional to 13,162.90, 18,166.04 and 7,195.45 is: 9,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.90 : 18,166.04 = 7,195.45 : x
  2. Step 2: Convert to fraction form
    13,162.90/18,166.04 = 7,195.45/x
  3. Step 3: Cross multiply
    13,162.90x = 18,166.04 × 7,195.45
  4. Step 4: Simplify right side
    13,162.90x = 130,712,832.52
  5. Step 5: Solve for x
    x = 130,712,832.52/13,162.90
  6. Step 6: Final answer
    x = 9,930.40

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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.