Home / 10,740.80-16,111.20-7,460.30

Finding the Fourth Proportional to 10,740.80, 16,111.20 and 7,460.30

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Solution

The fourth proportional to 10,740.80, 16,111.20 and 7,460.30 is: 11,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,740.80 : 16,111.20 = 7,460.30 : x
  2. Step 2: Convert to fraction form
    10,740.80/16,111.20 = 7,460.30/x
  3. Step 3: Cross multiply
    10,740.80x = 16,111.20 × 7,460.30
  4. Step 4: Simplify right side
    10,740.80x = 120,194,385.36
  5. Step 5: Solve for x
    x = 120,194,385.36/10,740.80
  6. Step 6: Final answer
    x = 11,190.45

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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.