Home / 12,623.64-17,421.21-7,320.12

Finding the Fourth Proportional to 12,623.64, 17,421.21 and 7,320.12

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Solution

The fourth proportional to 12,623.64, 17,421.21 and 7,320.12 is: 10,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.64 : 17,421.21 = 7,320.12 : x
  2. Step 2: Convert to fraction form
    12,623.64/17,421.21 = 7,320.12/x
  3. Step 3: Cross multiply
    12,623.64x = 17,421.21 × 7,320.12
  4. Step 4: Simplify right side
    12,623.64x = 127,525,347.75
  5. Step 5: Solve for x
    x = 127,525,347.75/12,623.64
  6. Step 6: Final answer
    x = 10,102.11

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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.