Home / 13,253.48-18,289.39-7,285.13

Finding the Fourth Proportional to 13,253.48, 18,289.39 and 7,285.13

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Solution

The fourth proportional to 13,253.48, 18,289.39 and 7,285.13 is: 10,053.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.48 : 18,289.39 = 7,285.13 : x
  2. Step 2: Convert to fraction form
    13,253.48/18,289.39 = 7,285.13/x
  3. Step 3: Cross multiply
    13,253.48x = 18,289.39 × 7,285.13
  4. Step 4: Simplify right side
    13,253.48x = 133,240,583.77
  5. Step 5: Solve for x
    x = 133,240,583.77/13,253.48
  6. Step 6: Final answer
    x = 10,053.25

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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.