Home / 16,972.74-23,421.75-9,419.40

Finding the Fourth Proportional to 16,972.74, 23,421.75 and 9,419.40

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Solution

The fourth proportional to 16,972.74, 23,421.75 and 9,419.40 is: 12,998.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.74 : 23,421.75 = 9,419.40 : x
  2. Step 2: Convert to fraction form
    16,972.74/23,421.75 = 9,419.40/x
  3. Step 3: Cross multiply
    16,972.74x = 23,421.75 × 9,419.40
  4. Step 4: Simplify right side
    16,972.74x = 220,618,831.95
  5. Step 5: Solve for x
    x = 220,618,831.95/16,972.74
  6. Step 6: Final answer
    x = 12,998.42

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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.