Home / 9,641.04-13,299.84-6,491.76

Finding the Fourth Proportional to 9,641.04, 13,299.84 and 6,491.76

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Solution

The fourth proportional to 9,641.04, 13,299.84 and 6,491.76 is: 8,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,641.04 : 13,299.84 = 6,491.76 : x
  2. Step 2: Convert to fraction form
    9,641.04/13,299.84 = 6,491.76/x
  3. Step 3: Cross multiply
    9,641.04x = 13,299.84 × 6,491.76
  4. Step 4: Simplify right side
    9,641.04x = 86,339,369.32
  5. Step 5: Solve for x
    x = 86,339,369.32/9,641.04
  6. Step 6: Final answer
    x = 8,955.40

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Double scale
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Similar ratio
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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.