Home / 11,164.02-15,406.84-6,688.50

Finding the Fourth Proportional to 11,164.02, 15,406.84 and 6,688.50

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Solution

The fourth proportional to 11,164.02, 15,406.84 and 6,688.50 is: 9,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.02 : 15,406.84 = 6,688.50 : x
  2. Step 2: Convert to fraction form
    11,164.02/15,406.84 = 6,688.50/x
  3. Step 3: Cross multiply
    11,164.02x = 15,406.84 × 6,688.50
  4. Step 4: Simplify right side
    11,164.02x = 103,048,649.34
  5. Step 5: Solve for x
    x = 103,048,649.34/11,164.02
  6. Step 6: Final answer
    x = 9,230.43

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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.