Home / 15,582.47-21,502.94-8,507.52

Finding the Fourth Proportional to 15,582.47, 21,502.94 and 8,507.52

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Solution

The fourth proportional to 15,582.47, 21,502.94 and 8,507.52 is: 11,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582.47 : 21,502.94 = 8,507.52 : x
  2. Step 2: Convert to fraction form
    15,582.47/21,502.94 = 8,507.52/x
  3. Step 3: Cross multiply
    15,582.47x = 21,502.94 × 8,507.52
  4. Step 4: Simplify right side
    15,582.47x = 182,936,649.57
  5. Step 5: Solve for x
    x = 182,936,649.57/15,582.47
  6. Step 6: Final answer
    x = 11,739.90

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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.