Home / 10,663.58-15,989.90-6,222.65

Finding the Fourth Proportional to 10,663.58, 15,989.90 and 6,222.65

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Solution

The fourth proportional to 10,663.58, 15,989.90 and 6,222.65 is: 9,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,663.58 : 15,989.90 = 6,222.65 : x
  2. Step 2: Convert to fraction form
    10,663.58/15,989.90 = 6,222.65/x
  3. Step 3: Cross multiply
    10,663.58x = 15,989.90 × 6,222.65
  4. Step 4: Simplify right side
    10,663.58x = 99,499,440.17
  5. Step 5: Solve for x
    x = 99,499,440.17/10,663.58
  6. Step 6: Final answer
    x = 9,330.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.