Home / 10,643.50-14,688.62-6,395.86

Finding the Fourth Proportional to 10,643.50, 14,688.62 and 6,395.86

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Solution

The fourth proportional to 10,643.50, 14,688.62 and 6,395.86 is: 8,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.50 : 14,688.62 = 6,395.86 : x
  2. Step 2: Convert to fraction form
    10,643.50/14,688.62 = 6,395.86/x
  3. Step 3: Cross multiply
    10,643.50x = 14,688.62 × 6,395.86
  4. Step 4: Simplify right side
    10,643.50x = 93,946,357.11
  5. Step 5: Solve for x
    x = 93,946,357.11/10,643.50
  6. Step 6: Final answer
    x = 8,826.64

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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.