Home / 17,712.90-26,569.35-9,920.70

Finding the Fourth Proportional to 17,712.90, 26,569.35 and 9,920.70

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Solution

The fourth proportional to 17,712.90, 26,569.35 and 9,920.70 is: 14,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,712.90 : 26,569.35 = 9,920.70 : x
  2. Step 2: Convert to fraction form
    17,712.90/26,569.35 = 9,920.70/x
  3. Step 3: Cross multiply
    17,712.90x = 26,569.35 × 9,920.70
  4. Step 4: Simplify right side
    17,712.90x = 263,586,550.55
  5. Step 5: Solve for x
    x = 263,586,550.55/17,712.90
  6. Step 6: Final answer
    x = 14,881.05

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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.