Home / 18,357.26-25,333.57-12,989.32

Finding the Fourth Proportional to 18,357.26, 25,333.57 and 12,989.32

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Solution

The fourth proportional to 18,357.26, 25,333.57 and 12,989.32 is: 17,925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.26 : 25,333.57 = 12,989.32 : x
  2. Step 2: Convert to fraction form
    18,357.26/25,333.57 = 12,989.32/x
  3. Step 3: Cross multiply
    18,357.26x = 25,333.57 × 12,989.32
  4. Step 4: Simplify right side
    18,357.26x = 329,065,847.47
  5. Step 5: Solve for x
    x = 329,065,847.47/18,357.26
  6. Step 6: Final answer
    x = 17,925.65

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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.