Home / 13,859.57-19,132.50-8,830.69

Finding the Fourth Proportional to 13,859.57, 19,132.50 and 8,830.69

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Solution

The fourth proportional to 13,859.57, 19,132.50 and 8,830.69 is: 12,190.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.57 : 19,132.50 = 8,830.69 : x
  2. Step 2: Convert to fraction form
    13,859.57/19,132.50 = 8,830.69/x
  3. Step 3: Cross multiply
    13,859.57x = 19,132.50 × 8,830.69
  4. Step 4: Simplify right side
    13,859.57x = 168,953,161.71
  5. Step 5: Solve for x
    x = 168,953,161.71/13,859.57
  6. Step 6: Final answer
    x = 12,190.36

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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.