Home / 12,528.58-18,776.46-5,124.37

Finding the Fourth Proportional to 12,528.58, 18,776.46 and 5,124.37

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Solution

The fourth proportional to 12,528.58, 18,776.46 and 5,124.37 is: 7,679.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.58 : 18,776.46 = 5,124.37 : x
  2. Step 2: Convert to fraction form
    12,528.58/18,776.46 = 5,124.37/x
  3. Step 3: Cross multiply
    12,528.58x = 18,776.46 × 5,124.37
  4. Step 4: Simplify right side
    12,528.58x = 96,217,500.61
  5. Step 5: Solve for x
    x = 96,217,500.61/12,528.58
  6. Step 6: Final answer
    x = 7,679.84

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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.