Home / 9,312.86-12,852.03-5,121.26

Finding the Fourth Proportional to 9,312.86, 12,852.03 and 5,121.26

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Solution

The fourth proportional to 9,312.86, 12,852.03 and 5,121.26 is: 7,067.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.86 : 12,852.03 = 5,121.26 : x
  2. Step 2: Convert to fraction form
    9,312.86/12,852.03 = 5,121.26/x
  3. Step 3: Cross multiply
    9,312.86x = 12,852.03 × 5,121.26
  4. Step 4: Simplify right side
    9,312.86x = 65,818,587.16
  5. Step 5: Solve for x
    x = 65,818,587.16/9,312.86
  6. Step 6: Final answer
    x = 7,067.49

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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.