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Finding the Fourth Proportional to 13,253.58, 18,289.58 and 7,285.28

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Solution

The fourth proportional to 13,253.58, 18,289.58 and 7,285.28 is: 10,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.58 : 18,289.58 = 7,285.28 : x
  2. Step 2: Convert to fraction form
    13,253.58/18,289.58 = 7,285.28/x
  3. Step 3: Cross multiply
    13,253.58x = 18,289.58 × 7,285.28
  4. Step 4: Simplify right side
    13,253.58x = 133,244,583.51
  5. Step 5: Solve for x
    x = 133,244,583.51/13,253.58
  6. Step 6: Final answer
    x = 10,053.48

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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.