Home / 12,316.20-18,470.70-4,417.80

Finding the Fourth Proportional to 12,316.20, 18,470.70 and 4,417.80

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Solution

The fourth proportional to 12,316.20, 18,470.70 and 4,417.80 is: 6,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.20 : 18,470.70 = 4,417.80 : x
  2. Step 2: Convert to fraction form
    12,316.20/18,470.70 = 4,417.80/x
  3. Step 3: Cross multiply
    12,316.20x = 18,470.70 × 4,417.80
  4. Step 4: Simplify right side
    12,316.20x = 81,599,858.46
  5. Step 5: Solve for x
    x = 81,599,858.46/12,316.20
  6. Step 6: Final answer
    x = 6,625.41

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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.