Home / 10,306.44-15,457.05-3,980.04

Finding the Fourth Proportional to 10,306.44, 15,457.05 and 3,980.04

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Solution

The fourth proportional to 10,306.44, 15,457.05 and 3,980.04 is: 5,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.44 : 15,457.05 = 3,980.04 : x
  2. Step 2: Convert to fraction form
    10,306.44/15,457.05 = 3,980.04/x
  3. Step 3: Cross multiply
    10,306.44x = 15,457.05 × 3,980.04
  4. Step 4: Simplify right side
    10,306.44x = 61,519,677.28
  5. Step 5: Solve for x
    x = 61,519,677.28/10,306.44
  6. Step 6: Final answer
    x = 5,969.05

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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.