Home / 12,920.08-19,359.96-10,322.32

Finding the Fourth Proportional to 12,920.08, 19,359.96 and 10,322.32

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Solution

The fourth proportional to 12,920.08, 19,359.96 and 10,322.32 is: 15,467.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920.08 : 19,359.96 = 10,322.32 : x
  2. Step 2: Convert to fraction form
    12,920.08/19,359.96 = 10,322.32/x
  3. Step 3: Cross multiply
    12,920.08x = 19,359.96 × 10,322.32
  4. Step 4: Simplify right side
    12,920.08x = 199,839,702.31
  5. Step 5: Solve for x
    x = 199,839,702.31/12,920.08
  6. Step 6: Final answer
    x = 15,467.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.