Home / 7,148.25-10,722.30-6,971.77

Finding the Fourth Proportional to 7,148.25, 10,722.30 and 6,971.77

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Solution

The fourth proportional to 7,148.25, 10,722.30 and 6,971.77 is: 10,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.25 : 10,722.30 = 6,971.77 : x
  2. Step 2: Convert to fraction form
    7,148.25/10,722.30 = 6,971.77/x
  3. Step 3: Cross multiply
    7,148.25x = 10,722.30 × 6,971.77
  4. Step 4: Simplify right side
    7,148.25x = 74,753,409.47
  5. Step 5: Solve for x
    x = 74,753,409.47/7,148.25
  6. Step 6: Final answer
    x = 10,457.58

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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.