Home / 9,117.30-12,586.07-5,339.94

Finding the Fourth Proportional to 9,117.30, 12,586.07 and 5,339.94

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Solution

The fourth proportional to 9,117.30, 12,586.07 and 5,339.94 is: 7,371.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.30 : 12,586.07 = 5,339.94 : x
  2. Step 2: Convert to fraction form
    9,117.30/12,586.07 = 5,339.94/x
  3. Step 3: Cross multiply
    9,117.30x = 12,586.07 × 5,339.94
  4. Step 4: Simplify right side
    9,117.30x = 67,208,871.99
  5. Step 5: Solve for x
    x = 67,208,871.99/9,117.30
  6. Step 6: Final answer
    x = 7,371.58

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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.