Home / 18,347.52-25,320.72-10,390.56

Finding the Fourth Proportional to 18,347.52, 25,320.72 and 10,390.56

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Solution

The fourth proportional to 18,347.52, 25,320.72 and 10,390.56 is: 14,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.52 : 25,320.72 = 10,390.56 : x
  2. Step 2: Convert to fraction form
    18,347.52/25,320.72 = 10,390.56/x
  3. Step 3: Cross multiply
    18,347.52x = 25,320.72 × 10,390.56
  4. Step 4: Simplify right side
    18,347.52x = 263,096,460.40
  5. Step 5: Solve for x
    x = 263,096,460.40/18,347.52
  6. Step 6: Final answer
    x = 14,339.62

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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.