Home / 12,475.76-18,709.58-4,153.54

Finding the Fourth Proportional to 12,475.76, 18,709.58 and 4,153.54

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Solution

The fourth proportional to 12,475.76, 18,709.58 and 4,153.54 is: 6,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.76 : 18,709.58 = 4,153.54 : x
  2. Step 2: Convert to fraction form
    12,475.76/18,709.58 = 4,153.54/x
  3. Step 3: Cross multiply
    12,475.76x = 18,709.58 × 4,153.54
  4. Step 4: Simplify right side
    12,475.76x = 77,710,988.91
  5. Step 5: Solve for x
    x = 77,710,988.91/12,475.76
  6. Step 6: Final answer
    x = 6,228.96

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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.