Home / 10,663.94-15,989.06-4,428.26

Finding the Fourth Proportional to 10,663.94, 15,989.06 and 4,428.26

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Solution

The fourth proportional to 10,663.94, 15,989.06 and 4,428.26 is: 6,639.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,663.94 : 15,989.06 = 4,428.26 : x
  2. Step 2: Convert to fraction form
    10,663.94/15,989.06 = 4,428.26/x
  3. Step 3: Cross multiply
    10,663.94x = 15,989.06 × 4,428.26
  4. Step 4: Simplify right side
    10,663.94x = 70,803,645.96
  5. Step 5: Solve for x
    x = 70,803,645.96/10,663.94
  6. Step 6: Final answer
    x = 6,639.54

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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.