Home / 12,535.36-17,289.60-9,002.20

Finding the Fourth Proportional to 12,535.36, 17,289.60 and 9,002.20

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Solution

The fourth proportional to 12,535.36, 17,289.60 and 9,002.20 is: 12,416.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.36 : 17,289.60 = 9,002.20 : x
  2. Step 2: Convert to fraction form
    12,535.36/17,289.60 = 9,002.20/x
  3. Step 3: Cross multiply
    12,535.36x = 17,289.60 × 9,002.20
  4. Step 4: Simplify right side
    12,535.36x = 155,644,437.12
  5. Step 5: Solve for x
    x = 155,644,437.12/12,535.36
  6. Step 6: Final answer
    x = 12,416.43

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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.