Home / 13,253.04-18,289.68-7,285.20

Finding the Fourth Proportional to 13,253.04, 18,289.68 and 7,285.20

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Solution

The fourth proportional to 13,253.04, 18,289.68 and 7,285.20 is: 10,053.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.04 : 18,289.68 = 7,285.20 : x
  2. Step 2: Convert to fraction form
    13,253.04/18,289.68 = 7,285.20/x
  3. Step 3: Cross multiply
    13,253.04x = 18,289.68 × 7,285.20
  4. Step 4: Simplify right side
    13,253.04x = 133,243,976.74
  5. Step 5: Solve for x
    x = 133,243,976.74/13,253.04
  6. Step 6: Final answer
    x = 10,053.84

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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.