Home / 18,498.94-25,533.28-11,421.30

Finding the Fourth Proportional to 18,498.94, 25,533.28 and 11,421.30

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Solution

The fourth proportional to 18,498.94, 25,533.28 and 11,421.30 is: 15,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.94 : 25,533.28 = 11,421.30 : x
  2. Step 2: Convert to fraction form
    18,498.94/25,533.28 = 11,421.30/x
  3. Step 3: Cross multiply
    18,498.94x = 25,533.28 × 11,421.30
  4. Step 4: Simplify right side
    18,498.94x = 291,623,250.86
  5. Step 5: Solve for x
    x = 291,623,250.86/18,498.94
  6. Step 6: Final answer
    x = 15,764.32

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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.