Home / 19,569.93-29,359.37-8,478.47

Finding the Fourth Proportional to 19,569.93, 29,359.37 and 8,478.47

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Solution

The fourth proportional to 19,569.93, 29,359.37 and 8,478.47 is: 12,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,569.93 : 29,359.37 = 8,478.47 : x
  2. Step 2: Convert to fraction form
    19,569.93/29,359.37 = 8,478.47/x
  3. Step 3: Cross multiply
    19,569.93x = 29,359.37 × 8,478.47
  4. Step 4: Simplify right side
    19,569.93x = 248,922,348.57
  5. Step 5: Solve for x
    x = 248,922,348.57/19,569.93
  6. Step 6: Final answer
    x = 12,719.63

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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.