Home / 19,587.74-29,319.63-12,558.36

Finding the Fourth Proportional to 19,587.74, 29,319.63 and 12,558.36

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Solution

The fourth proportional to 19,587.74, 29,319.63 and 12,558.36 is: 18,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.74 : 29,319.63 = 12,558.36 : x
  2. Step 2: Convert to fraction form
    19,587.74/29,319.63 = 12,558.36/x
  3. Step 3: Cross multiply
    19,587.74x = 29,319.63 × 12,558.36
  4. Step 4: Simplify right side
    19,587.74x = 368,206,468.61
  5. Step 5: Solve for x
    x = 368,206,468.61/19,587.74
  6. Step 6: Final answer
    x = 18,797.81

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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.