Home / 10,642.90-14,688.93-6,453.22

Finding the Fourth Proportional to 10,642.90, 14,688.93 and 6,453.22

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Solution

The fourth proportional to 10,642.90, 14,688.93 and 6,453.22 is: 8,906.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.90 : 14,688.93 = 6,453.22 : x
  2. Step 2: Convert to fraction form
    10,642.90/14,688.93 = 6,453.22/x
  3. Step 3: Cross multiply
    10,642.90x = 14,688.93 × 6,453.22
  4. Step 4: Simplify right side
    10,642.90x = 94,790,896.85
  5. Step 5: Solve for x
    x = 94,790,896.85/10,642.90
  6. Step 6: Final answer
    x = 8,906.49

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1.5x scale

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.