Home / 11,925.36-16,458.98-6,621.89

Finding the Fourth Proportional to 11,925.36, 16,458.98 and 6,621.89

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Solution

The fourth proportional to 11,925.36, 16,458.98 and 6,621.89 is: 9,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.36 : 16,458.98 = 6,621.89 : x
  2. Step 2: Convert to fraction form
    11,925.36/16,458.98 = 6,621.89/x
  3. Step 3: Cross multiply
    11,925.36x = 16,458.98 × 6,621.89
  4. Step 4: Simplify right side
    11,925.36x = 108,989,439.67
  5. Step 5: Solve for x
    x = 108,989,439.67/11,925.36
  6. Step 6: Final answer
    x = 9,139.30

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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.