Home / 16,248.60-22,420.80-9,078.21

Finding the Fourth Proportional to 16,248.60, 22,420.80 and 9,078.21

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Solution

The fourth proportional to 16,248.60, 22,420.80 and 9,078.21 is: 12,526.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,248.60 : 22,420.80 = 9,078.21 : x
  2. Step 2: Convert to fraction form
    16,248.60/22,420.80 = 9,078.21/x
  3. Step 3: Cross multiply
    16,248.60x = 22,420.80 × 9,078.21
  4. Step 4: Simplify right side
    16,248.60x = 203,540,730.77
  5. Step 5: Solve for x
    x = 203,540,730.77/16,248.60
  6. Step 6: Final answer
    x = 12,526.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.