Home / 12,647.07-18,970.43-5,625.23

Finding the Fourth Proportional to 12,647.07, 18,970.43 and 5,625.23

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Solution

The fourth proportional to 12,647.07, 18,970.43 and 5,625.23 is: 8,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.07 : 18,970.43 = 5,625.23 : x
  2. Step 2: Convert to fraction form
    12,647.07/18,970.43 = 5,625.23/x
  3. Step 3: Cross multiply
    12,647.07x = 18,970.43 × 5,625.23
  4. Step 4: Simplify right side
    12,647.07x = 106,712,908.97
  5. Step 5: Solve for x
    x = 106,712,908.97/12,647.07
  6. Step 6: Final answer
    x = 8,437.76

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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.