Home / 12,922.07-17,835.23-7,885.20

Finding the Fourth Proportional to 12,922.07, 17,835.23 and 7,885.20

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Solution

The fourth proportional to 12,922.07, 17,835.23 and 7,885.20 is: 10,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.07 : 17,835.23 = 7,885.20 : x
  2. Step 2: Convert to fraction form
    12,922.07/17,835.23 = 7,885.20/x
  3. Step 3: Cross multiply
    12,922.07x = 17,835.23 × 7,885.20
  4. Step 4: Simplify right side
    12,922.07x = 140,634,316.17
  5. Step 5: Solve for x
    x = 140,634,316.17/12,922.07
  6. Step 6: Final answer
    x = 10,883.27

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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.