Home / 12,921.63-19,357.20-6,157.59

Finding the Fourth Proportional to 12,921.63, 19,357.20 and 6,157.59

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Solution

The fourth proportional to 12,921.63, 19,357.20 and 6,157.59 is: 9,224.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921.63 : 19,357.20 = 6,157.59 : x
  2. Step 2: Convert to fraction form
    12,921.63/19,357.20 = 6,157.59/x
  3. Step 3: Cross multiply
    12,921.63x = 19,357.20 × 6,157.59
  4. Step 4: Simplify right side
    12,921.63x = 119,193,701.15
  5. Step 5: Solve for x
    x = 119,193,701.15/12,921.63
  6. Step 6: Final answer
    x = 9,224.35

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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.