Home / 15,332.37-21,158.73-8,618.28

Finding the Fourth Proportional to 15,332.37, 21,158.73 and 8,618.28

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Solution

The fourth proportional to 15,332.37, 21,158.73 and 8,618.28 is: 11,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332.37 : 21,158.73 = 8,618.28 : x
  2. Step 2: Convert to fraction form
    15,332.37/21,158.73 = 8,618.28/x
  3. Step 3: Cross multiply
    15,332.37x = 21,158.73 × 8,618.28
  4. Step 4: Simplify right side
    15,332.37x = 182,351,859.58
  5. Step 5: Solve for x
    x = 182,351,859.58/15,332.37
  6. Step 6: Final answer
    x = 11,893.26

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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.