Home / 18,288.20-25,237.74-9,904.70

Finding the Fourth Proportional to 18,288.20, 25,237.74 and 9,904.70

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Solution

The fourth proportional to 18,288.20, 25,237.74 and 9,904.70 is: 13,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.20 : 25,237.74 = 9,904.70 : x
  2. Step 2: Convert to fraction form
    18,288.20/25,237.74 = 9,904.70/x
  3. Step 3: Cross multiply
    18,288.20x = 25,237.74 × 9,904.70
  4. Step 4: Simplify right side
    18,288.20x = 249,972,117.19
  5. Step 5: Solve for x
    x = 249,972,117.19/18,288.20
  6. Step 6: Final answer
    x = 13,668.50

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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.