Home / 11,318.86-15,621.90-6,603.14

Finding the Fourth Proportional to 11,318.86, 15,621.90 and 6,603.14

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Solution

The fourth proportional to 11,318.86, 15,621.90 and 6,603.14 is: 9,113.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.86 : 15,621.90 = 6,603.14 : x
  2. Step 2: Convert to fraction form
    11,318.86/15,621.90 = 6,603.14/x
  3. Step 3: Cross multiply
    11,318.86x = 15,621.90 × 6,603.14
  4. Step 4: Simplify right side
    11,318.86x = 103,153,592.77
  5. Step 5: Solve for x
    x = 103,153,592.77/11,318.86
  6. Step 6: Final answer
    x = 9,113.43

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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.