Home / 10,979.51-16,457.46-4,742.46

Finding the Fourth Proportional to 10,979.51, 16,457.46 and 4,742.46

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Solution

The fourth proportional to 10,979.51, 16,457.46 and 4,742.46 is: 7,108.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.51 : 16,457.46 = 4,742.46 : x
  2. Step 2: Convert to fraction form
    10,979.51/16,457.46 = 4,742.46/x
  3. Step 3: Cross multiply
    10,979.51x = 16,457.46 × 4,742.46
  4. Step 4: Simplify right side
    10,979.51x = 78,048,845.75
  5. Step 5: Solve for x
    x = 78,048,845.75/10,979.51
  6. Step 6: Final answer
    x = 7,108.59

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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.