Home / 10,211.49-15,317.64-4,665.15

Finding the Fourth Proportional to 10,211.49, 15,317.64 and 4,665.15

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Solution

The fourth proportional to 10,211.49, 15,317.64 and 4,665.15 is: 6,997.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.49 : 15,317.64 = 4,665.15 : x
  2. Step 2: Convert to fraction form
    10,211.49/15,317.64 = 4,665.15/x
  3. Step 3: Cross multiply
    10,211.49x = 15,317.64 × 4,665.15
  4. Step 4: Simplify right side
    10,211.49x = 71,459,088.25
  5. Step 5: Solve for x
    x = 71,459,088.25/10,211.49
  6. Step 6: Final answer
    x = 6,997.91

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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.