Home / 12,711.06-17,541.91-7,331.50

Finding the Fourth Proportional to 12,711.06, 17,541.91 and 7,331.50

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Solution

The fourth proportional to 12,711.06, 17,541.91 and 7,331.50 is: 10,117.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.06 : 17,541.91 = 7,331.50 : x
  2. Step 2: Convert to fraction form
    12,711.06/17,541.91 = 7,331.50/x
  3. Step 3: Cross multiply
    12,711.06x = 17,541.91 × 7,331.50
  4. Step 4: Simplify right side
    12,711.06x = 128,608,450.98
  5. Step 5: Solve for x
    x = 128,608,450.98/12,711.06
  6. Step 6: Final answer
    x = 10,117.84

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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.