Home / 18,784.04-25,920.18-11,228.87

Finding the Fourth Proportional to 18,784.04, 25,920.18 and 11,228.87

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Solution

The fourth proportional to 18,784.04, 25,920.18 and 11,228.87 is: 15,494.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.04 : 25,920.18 = 11,228.87 : x
  2. Step 2: Convert to fraction form
    18,784.04/25,920.18 = 11,228.87/x
  3. Step 3: Cross multiply
    18,784.04x = 25,920.18 × 11,228.87
  4. Step 4: Simplify right side
    18,784.04x = 291,054,331.60
  5. Step 5: Solve for x
    x = 291,054,331.60/18,784.04
  6. Step 6: Final answer
    x = 15,494.77

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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.