Home / 14,890.86-20,548.08-8,176.50

Finding the Fourth Proportional to 14,890.86, 20,548.08 and 8,176.50

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Solution

The fourth proportional to 14,890.86, 20,548.08 and 8,176.50 is: 11,282.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,890.86 : 20,548.08 = 8,176.50 : x
  2. Step 2: Convert to fraction form
    14,890.86/20,548.08 = 8,176.50/x
  3. Step 3: Cross multiply
    14,890.86x = 20,548.08 × 8,176.50
  4. Step 4: Simplify right side
    14,890.86x = 168,011,376.12
  5. Step 5: Solve for x
    x = 168,011,376.12/14,890.86
  6. Step 6: Final answer
    x = 11,282.85

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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.