Home / 10,509.20-14,500.80-6,474.56

Finding the Fourth Proportional to 10,509.20, 14,500.80 and 6,474.56

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Solution

The fourth proportional to 10,509.20, 14,500.80 and 6,474.56 is: 8,933.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.20 : 14,500.80 = 6,474.56 : x
  2. Step 2: Convert to fraction form
    10,509.20/14,500.80 = 6,474.56/x
  3. Step 3: Cross multiply
    10,509.20x = 14,500.80 × 6,474.56
  4. Step 4: Simplify right side
    10,509.20x = 93,886,299.65
  5. Step 5: Solve for x
    x = 93,886,299.65/10,509.20
  6. Step 6: Final answer
    x = 8,933.72

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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.