Home / 9,611.76-13,256.55-6,626.91

Finding the Fourth Proportional to 9,611.76, 13,256.55 and 6,626.91

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Solution

The fourth proportional to 9,611.76, 13,256.55 and 6,626.91 is: 9,139.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,611.76 : 13,256.55 = 6,626.91 : x
  2. Step 2: Convert to fraction form
    9,611.76/13,256.55 = 6,626.91/x
  3. Step 3: Cross multiply
    9,611.76x = 13,256.55 × 6,626.91
  4. Step 4: Simplify right side
    9,611.76x = 87,849,963.76
  5. Step 5: Solve for x
    x = 87,849,963.76/9,611.76
  6. Step 6: Final answer
    x = 9,139.84

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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.