Home / 19,672.20-27,157.48-12,509.32

Finding the Fourth Proportional to 19,672.20, 27,157.48 and 12,509.32

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Solution

The fourth proportional to 19,672.20, 27,157.48 and 12,509.32 is: 17,269.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.20 : 27,157.48 = 12,509.32 : x
  2. Step 2: Convert to fraction form
    19,672.20/27,157.48 = 12,509.32/x
  3. Step 3: Cross multiply
    19,672.20x = 27,157.48 × 12,509.32
  4. Step 4: Simplify right side
    19,672.20x = 339,721,607.71
  5. Step 5: Solve for x
    x = 339,721,607.71/19,672.20
  6. Step 6: Final answer
    x = 17,269.12

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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.