Home / 13,615.07-18,782.28-8,834.58

Finding the Fourth Proportional to 13,615.07, 18,782.28 and 8,834.58

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Solution

The fourth proportional to 13,615.07, 18,782.28 and 8,834.58 is: 12,187.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.07 : 18,782.28 = 8,834.58 : x
  2. Step 2: Convert to fraction form
    13,615.07/18,782.28 = 8,834.58/x
  3. Step 3: Cross multiply
    13,615.07x = 18,782.28 × 8,834.58
  4. Step 4: Simplify right side
    13,615.07x = 165,933,555.24
  5. Step 5: Solve for x
    x = 165,933,555.24/13,615.07
  6. Step 6: Final answer
    x = 12,187.50

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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.