Home / 15,332.53-21,160.77-8,618.44

Finding the Fourth Proportional to 15,332.53, 21,160.77 and 8,618.44

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Solution

The fourth proportional to 15,332.53, 21,160.77 and 8,618.44 is: 11,894.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332.53 : 21,160.77 = 8,618.44 : x
  2. Step 2: Convert to fraction form
    15,332.53/21,160.77 = 8,618.44/x
  3. Step 3: Cross multiply
    15,332.53x = 21,160.77 × 8,618.44
  4. Step 4: Simplify right side
    15,332.53x = 182,372,826.60
  5. Step 5: Solve for x
    x = 182,372,826.60/15,332.53
  6. Step 6: Final answer
    x = 11,894.50

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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.