Home / 12,319.76-18,479.72-4,924.84

Finding the Fourth Proportional to 12,319.76, 18,479.72 and 4,924.84

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Solution

The fourth proportional to 12,319.76, 18,479.72 and 4,924.84 is: 7,387.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.76 : 18,479.72 = 4,924.84 : x
  2. Step 2: Convert to fraction form
    12,319.76/18,479.72 = 4,924.84/x
  3. Step 3: Cross multiply
    12,319.76x = 18,479.72 × 4,924.84
  4. Step 4: Simplify right side
    12,319.76x = 91,009,664.24
  5. Step 5: Solve for x
    x = 91,009,664.24/12,319.76
  6. Step 6: Final answer
    x = 7,387.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.