Home / 7,235.40-10,876.30-6,721.80

Finding the Fourth Proportional to 7,235.40, 10,876.30 and 6,721.80

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Solution

The fourth proportional to 7,235.40, 10,876.30 and 6,721.80 is: 10,104.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,235.40 : 10,876.30 = 6,721.80 : x
  2. Step 2: Convert to fraction form
    7,235.40/10,876.30 = 6,721.80/x
  3. Step 3: Cross multiply
    7,235.40x = 10,876.30 × 6,721.80
  4. Step 4: Simplify right side
    7,235.40x = 73,108,313.34
  5. Step 5: Solve for x
    x = 73,108,313.34/7,235.40
  6. Step 6: Final answer
    x = 10,104.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.