Home / 19,087.32-28,630.63-7,840.27

Finding the Fourth Proportional to 19,087.32, 28,630.63 and 7,840.27

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Solution

The fourth proportional to 19,087.32, 28,630.63 and 7,840.27 is: 11,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.32 : 28,630.63 = 7,840.27 : x
  2. Step 2: Convert to fraction form
    19,087.32/28,630.63 = 7,840.27/x
  3. Step 3: Cross multiply
    19,087.32x = 28,630.63 × 7,840.27
  4. Step 4: Simplify right side
    19,087.32x = 224,471,869.47
  5. Step 5: Solve for x
    x = 224,471,869.47/19,087.32
  6. Step 6: Final answer
    x = 11,760.26

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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.