Home / 16,488.90-22,756.20-9,417.60

Finding the Fourth Proportional to 16,488.90, 22,756.20 and 9,417.60

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Solution

The fourth proportional to 16,488.90, 22,756.20 and 9,417.60 is: 12,997.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,488.90 : 22,756.20 = 9,417.60 : x
  2. Step 2: Convert to fraction form
    16,488.90/22,756.20 = 9,417.60/x
  3. Step 3: Cross multiply
    16,488.90x = 22,756.20 × 9,417.60
  4. Step 4: Simplify right side
    16,488.90x = 214,308,789.12
  5. Step 5: Solve for x
    x = 214,308,789.12/16,488.90
  6. Step 6: Final answer
    x = 12,997.16

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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.