Home / 9,639.80-14,381.91-8,587.98

Finding the Fourth Proportional to 9,639.80, 14,381.91 and 8,587.98

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Solution

The fourth proportional to 9,639.80, 14,381.91 and 8,587.98 is: 12,812.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.80 : 14,381.91 = 8,587.98 : x
  2. Step 2: Convert to fraction form
    9,639.80/14,381.91 = 8,587.98/x
  3. Step 3: Cross multiply
    9,639.80x = 14,381.91 × 8,587.98
  4. Step 4: Simplify right side
    9,639.80x = 123,511,555.44
  5. Step 5: Solve for x
    x = 123,511,555.44/9,639.80
  6. Step 6: Final answer
    x = 12,812.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.