Home / 12,664.40-17,477.92-7,000.25

Finding the Fourth Proportional to 12,664.40, 17,477.92 and 7,000.25

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Solution

The fourth proportional to 12,664.40, 17,477.92 and 7,000.25 is: 9,660.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.40 : 17,477.92 = 7,000.25 : x
  2. Step 2: Convert to fraction form
    12,664.40/17,477.92 = 7,000.25/x
  3. Step 3: Cross multiply
    12,664.40x = 17,477.92 × 7,000.25
  4. Step 4: Simplify right side
    12,664.40x = 122,349,809.48
  5. Step 5: Solve for x
    x = 122,349,809.48/12,664.40
  6. Step 6: Final answer
    x = 9,660.92

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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.