Home / 9,285.72-12,813.70-5,509.23

Finding the Fourth Proportional to 9,285.72, 12,813.70 and 5,509.23

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Solution

The fourth proportional to 9,285.72, 12,813.70 and 5,509.23 is: 7,602.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.72 : 12,813.70 = 5,509.23 : x
  2. Step 2: Convert to fraction form
    9,285.72/12,813.70 = 5,509.23/x
  3. Step 3: Cross multiply
    9,285.72x = 12,813.70 × 5,509.23
  4. Step 4: Simplify right side
    9,285.72x = 70,593,606.68
  5. Step 5: Solve for x
    x = 70,593,606.68/9,285.72
  6. Step 6: Final answer
    x = 7,602.38

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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.