Home / 16,287.60-24,420.45-6,421.80

Finding the Fourth Proportional to 16,287.60, 24,420.45 and 6,421.80

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Solution

The fourth proportional to 16,287.60, 24,420.45 and 6,421.80 is: 9,628.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,287.60 : 24,420.45 = 6,421.80 : x
  2. Step 2: Convert to fraction form
    16,287.60/24,420.45 = 6,421.80/x
  3. Step 3: Cross multiply
    16,287.60x = 24,420.45 × 6,421.80
  4. Step 4: Simplify right side
    16,287.60x = 156,823,245.81
  5. Step 5: Solve for x
    x = 156,823,245.81/16,287.60
  6. Step 6: Final answer
    x = 9,628.38

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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.