Home / 17,931.90-26,865.45-10,998.30

Finding the Fourth Proportional to 17,931.90, 26,865.45 and 10,998.30

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Solution

The fourth proportional to 17,931.90, 26,865.45 and 10,998.30 is: 16,477.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,931.90 : 26,865.45 = 10,998.30 : x
  2. Step 2: Convert to fraction form
    17,931.90/26,865.45 = 10,998.30/x
  3. Step 3: Cross multiply
    17,931.90x = 26,865.45 × 10,998.30
  4. Step 4: Simplify right side
    17,931.90x = 295,474,278.74
  5. Step 5: Solve for x
    x = 295,474,278.74/17,931.90
  6. Step 6: Final answer
    x = 16,477.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.