Home / 10,502.25-15,756.45-3,106.90

Finding the Fourth Proportional to 10,502.25, 15,756.45 and 3,106.90

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Solution

The fourth proportional to 10,502.25, 15,756.45 and 3,106.90 is: 4,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502.25 : 15,756.45 = 3,106.90 : x
  2. Step 2: Convert to fraction form
    10,502.25/15,756.45 = 3,106.90/x
  3. Step 3: Cross multiply
    10,502.25x = 15,756.45 × 3,106.90
  4. Step 4: Simplify right side
    10,502.25x = 48,953,714.51
  5. Step 5: Solve for x
    x = 48,953,714.51/10,502.25
  6. Step 6: Final answer
    x = 4,661.26

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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.