Home / 10,700.20-14,765.70-6,720.04

Finding the Fourth Proportional to 10,700.20, 14,765.70 and 6,720.04

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Solution

The fourth proportional to 10,700.20, 14,765.70 and 6,720.04 is: 9,273.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,700.20 : 14,765.70 = 6,720.04 : x
  2. Step 2: Convert to fraction form
    10,700.20/14,765.70 = 6,720.04/x
  3. Step 3: Cross multiply
    10,700.20x = 14,765.70 × 6,720.04
  4. Step 4: Simplify right side
    10,700.20x = 99,226,094.63
  5. Step 5: Solve for x
    x = 99,226,094.63/10,700.20
  6. Step 6: Final answer
    x = 9,273.29

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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.