Home / 14,515.90-21,717.14-12,746.86

Finding the Fourth Proportional to 14,515.90, 21,717.14 and 12,746.86

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Solution

The fourth proportional to 14,515.90, 21,717.14 and 12,746.86 is: 19,070.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.90 : 21,717.14 = 12,746.86 : x
  2. Step 2: Convert to fraction form
    14,515.90/21,717.14 = 12,746.86/x
  3. Step 3: Cross multiply
    14,515.90x = 21,717.14 × 12,746.86
  4. Step 4: Simplify right side
    14,515.90x = 276,825,320.75
  5. Step 5: Solve for x
    x = 276,825,320.75/14,515.90
  6. Step 6: Final answer
    x = 19,070.49

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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.