Home / 17,911.76-26,816.95-13,690.18

Finding the Fourth Proportional to 17,911.76, 26,816.95 and 13,690.18

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Solution

The fourth proportional to 17,911.76, 26,816.95 and 13,690.18 is: 20,496.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.76 : 26,816.95 = 13,690.18 : x
  2. Step 2: Convert to fraction form
    17,911.76/26,816.95 = 13,690.18/x
  3. Step 3: Cross multiply
    17,911.76x = 26,816.95 × 13,690.18
  4. Step 4: Simplify right side
    17,911.76x = 367,128,670.02
  5. Step 5: Solve for x
    x = 367,128,670.02/17,911.76
  6. Step 6: Final answer
    x = 20,496.52

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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.