Home / 18,444.35-25,457.27-11,276.78

Finding the Fourth Proportional to 18,444.35, 25,457.27 and 11,276.78

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Solution

The fourth proportional to 18,444.35, 25,457.27 and 11,276.78 is: 15,564.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,444.35 : 25,457.27 = 11,276.78 : x
  2. Step 2: Convert to fraction form
    18,444.35/25,457.27 = 11,276.78/x
  3. Step 3: Cross multiply
    18,444.35x = 25,457.27 × 11,276.78
  4. Step 4: Simplify right side
    18,444.35x = 287,075,849.52
  5. Step 5: Solve for x
    x = 287,075,849.52/18,444.35
  6. Step 6: Final answer
    x = 15,564.43

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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.