Home / 12,225.06-16,871.60-6,921.58

Finding the Fourth Proportional to 12,225.06, 16,871.60 and 6,921.58

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Solution

The fourth proportional to 12,225.06, 16,871.60 and 6,921.58 is: 9,552.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.06 : 16,871.60 = 6,921.58 : x
  2. Step 2: Convert to fraction form
    12,225.06/16,871.60 = 6,921.58/x
  3. Step 3: Cross multiply
    12,225.06x = 16,871.60 × 6,921.58
  4. Step 4: Simplify right side
    12,225.06x = 116,778,129.13
  5. Step 5: Solve for x
    x = 116,778,129.13/12,225.06
  6. Step 6: Final answer
    x = 9,552.36

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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.