Home / 8,415.79-12,624.08-3,152.15

Finding the Fourth Proportional to 8,415.79, 12,624.08 and 3,152.15

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Solution

The fourth proportional to 8,415.79, 12,624.08 and 3,152.15 is: 4,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.79 : 12,624.08 = 3,152.15 : x
  2. Step 2: Convert to fraction form
    8,415.79/12,624.08 = 3,152.15/x
  3. Step 3: Cross multiply
    8,415.79x = 12,624.08 × 3,152.15
  4. Step 4: Simplify right side
    8,415.79x = 39,792,993.77
  5. Step 5: Solve for x
    x = 39,792,993.77/8,415.79
  6. Step 6: Final answer
    x = 4,728.37

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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.