Home / 16,290.40-24,421.20-9,709.60

Finding the Fourth Proportional to 16,290.40, 24,421.20 and 9,709.60

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Solution

The fourth proportional to 16,290.40, 24,421.20 and 9,709.60 is: 14,555.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.40 : 24,421.20 = 9,709.60 : x
  2. Step 2: Convert to fraction form
    16,290.40/24,421.20 = 9,709.60/x
  3. Step 3: Cross multiply
    16,290.40x = 24,421.20 × 9,709.60
  4. Step 4: Simplify right side
    16,290.40x = 237,120,083.52
  5. Step 5: Solve for x
    x = 237,120,083.52/16,290.40
  6. Step 6: Final answer
    x = 14,555.82

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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.