Home / 12,253.19-16,912.86-7,220.32

Finding the Fourth Proportional to 12,253.19, 16,912.86 and 7,220.32

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Solution

The fourth proportional to 12,253.19, 16,912.86 and 7,220.32 is: 9,966.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.19 : 16,912.86 = 7,220.32 : x
  2. Step 2: Convert to fraction form
    12,253.19/16,912.86 = 7,220.32/x
  3. Step 3: Cross multiply
    12,253.19x = 16,912.86 × 7,220.32
  4. Step 4: Simplify right side
    12,253.19x = 122,116,176.75
  5. Step 5: Solve for x
    x = 122,116,176.75/12,253.19
  6. Step 6: Final answer
    x = 9,966.07

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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.