Home / 18,338.31-25,307.27-10,380.53

Finding the Fourth Proportional to 18,338.31, 25,307.27 and 10,380.53

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Solution

The fourth proportional to 18,338.31, 25,307.27 and 10,380.53 is: 14,325.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.31 : 25,307.27 = 10,380.53 : x
  2. Step 2: Convert to fraction form
    18,338.31/25,307.27 = 10,380.53/x
  3. Step 3: Cross multiply
    18,338.31x = 25,307.27 × 10,380.53
  4. Step 4: Simplify right side
    18,338.31x = 262,702,697.01
  5. Step 5: Solve for x
    x = 262,702,697.01/18,338.31
  6. Step 6: Final answer
    x = 14,325.35

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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.