Home / 13,162.95-18,165.11-7,195.01

Finding the Fourth Proportional to 13,162.95, 18,165.11 and 7,195.01

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Solution

The fourth proportional to 13,162.95, 18,165.11 and 7,195.01 is: 9,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.95 : 18,165.11 = 7,195.01 : x
  2. Step 2: Convert to fraction form
    13,162.95/18,165.11 = 7,195.01/x
  3. Step 3: Cross multiply
    13,162.95x = 18,165.11 × 7,195.01
  4. Step 4: Simplify right side
    13,162.95x = 130,698,021.30
  5. Step 5: Solve for x
    x = 130,698,021.30/13,162.95
  6. Step 6: Final answer
    x = 9,929.23

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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.