Home / 15,629.38-21,569.02-8,556.28

Finding the Fourth Proportional to 15,629.38, 21,569.02 and 8,556.28

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Solution

The fourth proportional to 15,629.38, 21,569.02 and 8,556.28 is: 11,807.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.38 : 21,569.02 = 8,556.28 : x
  2. Step 2: Convert to fraction form
    15,629.38/21,569.02 = 8,556.28/x
  3. Step 3: Cross multiply
    15,629.38x = 21,569.02 × 8,556.28
  4. Step 4: Simplify right side
    15,629.38x = 184,550,574.45
  5. Step 5: Solve for x
    x = 184,550,574.45/15,629.38
  6. Step 6: Final answer
    x = 11,807.93

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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.