Home / 10,021.95-13,829.81-6,479.01

Finding the Fourth Proportional to 10,021.95, 13,829.81 and 6,479.01

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Solution

The fourth proportional to 10,021.95, 13,829.81 and 6,479.01 is: 8,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.95 : 13,829.81 = 6,479.01 : x
  2. Step 2: Convert to fraction form
    10,021.95/13,829.81 = 6,479.01/x
  3. Step 3: Cross multiply
    10,021.95x = 13,829.81 × 6,479.01
  4. Step 4: Simplify right side
    10,021.95x = 89,603,444.89
  5. Step 5: Solve for x
    x = 89,603,444.89/10,021.95
  6. Step 6: Final answer
    x = 8,940.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.