Home / 12,444.40-18,666.20-4,124.80

Finding the Fourth Proportional to 12,444.40, 18,666.20 and 4,124.80

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Solution

The fourth proportional to 12,444.40, 18,666.20 and 4,124.80 is: 6,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.40 : 18,666.20 = 4,124.80 : x
  2. Step 2: Convert to fraction form
    12,444.40/18,666.20 = 4,124.80/x
  3. Step 3: Cross multiply
    12,444.40x = 18,666.20 × 4,124.80
  4. Step 4: Simplify right side
    12,444.40x = 76,994,341.76
  5. Step 5: Solve for x
    x = 76,994,341.76/12,444.40
  6. Step 6: Final answer
    x = 6,187.07

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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.