Home / 18,381.40-25,362.72-11,303.82

Finding the Fourth Proportional to 18,381.40, 25,362.72 and 11,303.82

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Solution

The fourth proportional to 18,381.40, 25,362.72 and 11,303.82 is: 15,597.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.40 : 25,362.72 = 11,303.82 : x
  2. Step 2: Convert to fraction form
    18,381.40/25,362.72 = 11,303.82/x
  3. Step 3: Cross multiply
    18,381.40x = 25,362.72 × 11,303.82
  4. Step 4: Simplify right side
    18,381.40x = 286,695,621.59
  5. Step 5: Solve for x
    x = 286,695,621.59/18,381.40
  6. Step 6: Final answer
    x = 15,597.05

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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.