Home / 15,594.36-21,520.21-8,424.27

Finding the Fourth Proportional to 15,594.36, 21,520.21 and 8,424.27

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Solution

The fourth proportional to 15,594.36, 21,520.21 and 8,424.27 is: 11,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,594.36 : 21,520.21 = 8,424.27 : x
  2. Step 2: Convert to fraction form
    15,594.36/21,520.21 = 8,424.27/x
  3. Step 3: Cross multiply
    15,594.36x = 21,520.21 × 8,424.27
  4. Step 4: Simplify right side
    15,594.36x = 181,292,059.50
  5. Step 5: Solve for x
    x = 181,292,059.50/15,594.36
  6. Step 6: Final answer
    x = 11,625.49

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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.