Home / 9,438.76-13,021.86-6,607.72

Finding the Fourth Proportional to 9,438.76, 13,021.86 and 6,607.72

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Solution

The fourth proportional to 9,438.76, 13,021.86 and 6,607.72 is: 9,116.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.76 : 13,021.86 = 6,607.72 : x
  2. Step 2: Convert to fraction form
    9,438.76/13,021.86 = 6,607.72/x
  3. Step 3: Cross multiply
    9,438.76x = 13,021.86 × 6,607.72
  4. Step 4: Simplify right side
    9,438.76x = 86,044,804.76
  5. Step 5: Solve for x
    x = 86,044,804.76/9,438.76
  6. Step 6: Final answer
    x = 9,116.11

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Half scale
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Double scale
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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.