Home / 13,253.76-18,289.80-7,285.28

Finding the Fourth Proportional to 13,253.76, 18,289.80 and 7,285.28

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Solution

The fourth proportional to 13,253.76, 18,289.80 and 7,285.28 is: 10,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.76 : 18,289.80 = 7,285.28 : x
  2. Step 2: Convert to fraction form
    13,253.76/18,289.80 = 7,285.28/x
  3. Step 3: Cross multiply
    13,253.76x = 18,289.80 × 7,285.28
  4. Step 4: Simplify right side
    13,253.76x = 133,246,222.70
  5. Step 5: Solve for x
    x = 133,246,222.70/13,253.76
  6. Step 6: Final answer
    x = 10,053.47

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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.