Home / 12,622.16-17,421.21-8,373.51

Finding the Fourth Proportional to 12,622.16, 17,421.21 and 8,373.51

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Solution

The fourth proportional to 12,622.16, 17,421.21 and 8,373.51 is: 11,557.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.16 : 17,421.21 = 8,373.51 : x
  2. Step 2: Convert to fraction form
    12,622.16/17,421.21 = 8,373.51/x
  3. Step 3: Cross multiply
    12,622.16x = 17,421.21 × 8,373.51
  4. Step 4: Simplify right side
    12,622.16x = 145,876,676.15
  5. Step 5: Solve for x
    x = 145,876,676.15/12,622.16
  6. Step 6: Final answer
    x = 11,557.19

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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.