Home / 11,816.50-16,306.70-6,438.93

Finding the Fourth Proportional to 11,816.50, 16,306.70 and 6,438.93

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Solution

The fourth proportional to 11,816.50, 16,306.70 and 6,438.93 is: 8,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.50 : 16,306.70 = 6,438.93 : x
  2. Step 2: Convert to fraction form
    11,816.50/16,306.70 = 6,438.93/x
  3. Step 3: Cross multiply
    11,816.50x = 16,306.70 × 6,438.93
  4. Step 4: Simplify right side
    11,816.50x = 104,997,642.71
  5. Step 5: Solve for x
    x = 104,997,642.71/11,816.50
  6. Step 6: Final answer
    x = 8,885.68

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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.