Home / 8,436.17-12,626.91-4,729.20

Finding the Fourth Proportional to 8,436.17, 12,626.91 and 4,729.20

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Solution

The fourth proportional to 8,436.17, 12,626.91 and 4,729.20 is: 7,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.17 : 12,626.91 = 4,729.20 : x
  2. Step 2: Convert to fraction form
    8,436.17/12,626.91 = 4,729.20/x
  3. Step 3: Cross multiply
    8,436.17x = 12,626.91 × 4,729.20
  4. Step 4: Simplify right side
    8,436.17x = 59,715,182.77
  5. Step 5: Solve for x
    x = 59,715,182.77/8,436.17
  6. Step 6: Final answer
    x = 7,078.47

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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.