Home / 10,071.20-15,104.64-3,141.92

Finding the Fourth Proportional to 10,071.20, 15,104.64 and 3,141.92

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Solution

The fourth proportional to 10,071.20, 15,104.64 and 3,141.92 is: 4,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,071.20 : 15,104.64 = 3,141.92 : x
  2. Step 2: Convert to fraction form
    10,071.20/15,104.64 = 3,141.92/x
  3. Step 3: Cross multiply
    10,071.20x = 15,104.64 × 3,141.92
  4. Step 4: Simplify right side
    10,071.20x = 47,457,570.51
  5. Step 5: Solve for x
    x = 47,457,570.51/10,071.20
  6. Step 6: Final answer
    x = 4,712.21

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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.