Home / 10,521.51-15,785.01-3,502.59

Finding the Fourth Proportional to 10,521.51, 15,785.01 and 3,502.59

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Solution

The fourth proportional to 10,521.51, 15,785.01 and 3,502.59 is: 5,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.51 : 15,785.01 = 3,502.59 : x
  2. Step 2: Convert to fraction form
    10,521.51/15,785.01 = 3,502.59/x
  3. Step 3: Cross multiply
    10,521.51x = 15,785.01 × 3,502.59
  4. Step 4: Simplify right side
    10,521.51x = 55,288,418.18
  5. Step 5: Solve for x
    x = 55,288,418.18/10,521.51
  6. Step 6: Final answer
    x = 5,254.80

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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.