Home / 9,122.77-12,570.82-6,291.01

Finding the Fourth Proportional to 9,122.77, 12,570.82 and 6,291.01

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Solution

The fourth proportional to 9,122.77, 12,570.82 and 6,291.01 is: 8,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.77 : 12,570.82 = 6,291.01 : x
  2. Step 2: Convert to fraction form
    9,122.77/12,570.82 = 6,291.01/x
  3. Step 3: Cross multiply
    9,122.77x = 12,570.82 × 6,291.01
  4. Step 4: Simplify right side
    9,122.77x = 79,083,154.33
  5. Step 5: Solve for x
    x = 79,083,154.33/9,122.77
  6. Step 6: Final answer
    x = 8,668.77

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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.