Home / 10,479.27-15,715.54-3,457.71

Finding the Fourth Proportional to 10,479.27, 15,715.54 and 3,457.71

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Solution

The fourth proportional to 10,479.27, 15,715.54 and 3,457.71 is: 5,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.27 : 15,715.54 = 3,457.71 : x
  2. Step 2: Convert to fraction form
    10,479.27/15,715.54 = 3,457.71/x
  3. Step 3: Cross multiply
    10,479.27x = 15,715.54 × 3,457.71
  4. Step 4: Simplify right side
    10,479.27x = 54,339,779.81
  5. Step 5: Solve for x
    x = 54,339,779.81/10,479.27
  6. Step 6: Final answer
    x = 5,185.45

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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.