Home / 15,467.60-21,345.18-8,393.84

Finding the Fourth Proportional to 15,467.60, 21,345.18 and 8,393.84

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Solution

The fourth proportional to 15,467.60, 21,345.18 and 8,393.84 is: 11,583.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.60 : 21,345.18 = 8,393.84 : x
  2. Step 2: Convert to fraction form
    15,467.60/21,345.18 = 8,393.84/x
  3. Step 3: Cross multiply
    15,467.60x = 21,345.18 × 8,393.84
  4. Step 4: Simplify right side
    15,467.60x = 179,168,025.69
  5. Step 5: Solve for x
    x = 179,168,025.69/15,467.60
  6. Step 6: Final answer
    x = 11,583.44

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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.