Home / 12,008.36-16,564.64-7,225

Finding the Fourth Proportional to 12,008.36, 16,564.64 and 7,225

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Solution

The fourth proportional to 12,008.36, 16,564.64 and 7,225 is: 9,966.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008.36 : 16,564.64 = 7,225 : x
  2. Step 2: Convert to fraction form
    12,008.36/16,564.64 = 7,225/x
  3. Step 3: Cross multiply
    12,008.36x = 16,564.64 × 7,225
  4. Step 4: Simplify right side
    12,008.36x = 119,679,524
  5. Step 5: Solve for x
    x = 119,679,524/12,008.36
  6. Step 6: Final answer
    x = 9,966.35

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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.