Home / 15,295.07-21,108.80-8,582.51

Finding the Fourth Proportional to 15,295.07, 21,108.80 and 8,582.51

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Solution

The fourth proportional to 15,295.07, 21,108.80 and 8,582.51 is: 11,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.07 : 21,108.80 = 8,582.51 : x
  2. Step 2: Convert to fraction form
    15,295.07/21,108.80 = 8,582.51/x
  3. Step 3: Cross multiply
    15,295.07x = 21,108.80 × 8,582.51
  4. Step 4: Simplify right side
    15,295.07x = 181,166,487.09
  5. Step 5: Solve for x
    x = 181,166,487.09/15,295.07
  6. Step 6: Final answer
    x = 11,844.76

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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.