Home / 18,336.87-25,289.28-12,360.69

Finding the Fourth Proportional to 18,336.87, 25,289.28 and 12,360.69

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Solution

The fourth proportional to 18,336.87, 25,289.28 and 12,360.69 is: 17,047.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.87 : 25,289.28 = 12,360.69 : x
  2. Step 2: Convert to fraction form
    18,336.87/25,289.28 = 12,360.69/x
  3. Step 3: Cross multiply
    18,336.87x = 25,289.28 × 12,360.69
  4. Step 4: Simplify right side
    18,336.87x = 312,592,950.40
  5. Step 5: Solve for x
    x = 312,592,950.40/18,336.87
  6. Step 6: Final answer
    x = 17,047.24

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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.