Home / 10,009.79-13,813.76-5,533.61

Finding the Fourth Proportional to 10,009.79, 13,813.76 and 5,533.61

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Solution

The fourth proportional to 10,009.79, 13,813.76 and 5,533.61 is: 7,636.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,009.79 : 13,813.76 = 5,533.61 : x
  2. Step 2: Convert to fraction form
    10,009.79/13,813.76 = 5,533.61/x
  3. Step 3: Cross multiply
    10,009.79x = 13,813.76 × 5,533.61
  4. Step 4: Simplify right side
    10,009.79x = 76,439,960.47
  5. Step 5: Solve for x
    x = 76,439,960.47/10,009.79
  6. Step 6: Final answer
    x = 7,636.52

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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.