Home / 15,647.69-21,594.32-8,574.57

Finding the Fourth Proportional to 15,647.69, 21,594.32 and 8,574.57

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Solution

The fourth proportional to 15,647.69, 21,594.32 and 8,574.57 is: 11,833.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.69 : 21,594.32 = 8,574.57 : x
  2. Step 2: Convert to fraction form
    15,647.69/21,594.32 = 8,574.57/x
  3. Step 3: Cross multiply
    15,647.69x = 21,594.32 × 8,574.57
  4. Step 4: Simplify right side
    15,647.69x = 185,161,857.60
  5. Step 5: Solve for x
    x = 185,161,857.60/15,647.69
  6. Step 6: Final answer
    x = 11,833.18

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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.