Home / 18,940.08-26,132.04-10,980.72

Finding the Fourth Proportional to 18,940.08, 26,132.04 and 10,980.72

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Solution

The fourth proportional to 18,940.08, 26,132.04 and 10,980.72 is: 15,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.08 : 26,132.04 = 10,980.72 : x
  2. Step 2: Convert to fraction form
    18,940.08/26,132.04 = 10,980.72/x
  3. Step 3: Cross multiply
    18,940.08x = 26,132.04 × 10,980.72
  4. Step 4: Simplify right side
    18,940.08x = 286,948,614.27
  5. Step 5: Solve for x
    x = 286,948,614.27/18,940.08
  6. Step 6: Final answer
    x = 15,150.34

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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.