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Finding the Fourth Proportional to 10,649.67, 14,699.04 and 6,619.53

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Solution

The fourth proportional to 10,649.67, 14,699.04 and 6,619.53 is: 9,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,649.67 : 14,699.04 = 6,619.53 : x
  2. Step 2: Convert to fraction form
    10,649.67/14,699.04 = 6,619.53/x
  3. Step 3: Cross multiply
    10,649.67x = 14,699.04 × 6,619.53
  4. Step 4: Simplify right side
    10,649.67x = 97,300,803.78
  5. Step 5: Solve for x
    x = 97,300,803.78/10,649.67
  6. Step 6: Final answer
    x = 9,136.51

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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.