Home / 12,582.28-18,875.80-4,260.06

Finding the Fourth Proportional to 12,582.28, 18,875.80 and 4,260.06

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Solution

The fourth proportional to 12,582.28, 18,875.80 and 4,260.06 is: 6,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.28 : 18,875.80 = 4,260.06 : x
  2. Step 2: Convert to fraction form
    12,582.28/18,875.80 = 4,260.06/x
  3. Step 3: Cross multiply
    12,582.28x = 18,875.80 × 4,260.06
  4. Step 4: Simplify right side
    12,582.28x = 80,412,040.55
  5. Step 5: Solve for x
    x = 80,412,040.55/12,582.28
  6. Step 6: Final answer
    x = 6,390.90

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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.