Home / 12,693.18-19,029.51-5,303.15

Finding the Fourth Proportional to 12,693.18, 19,029.51 and 5,303.15

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Solution

The fourth proportional to 12,693.18, 19,029.51 and 5,303.15 is: 7,950.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,693.18 : 19,029.51 = 5,303.15 : x
  2. Step 2: Convert to fraction form
    12,693.18/19,029.51 = 5,303.15/x
  3. Step 3: Cross multiply
    12,693.18x = 19,029.51 × 5,303.15
  4. Step 4: Simplify right side
    12,693.18x = 100,916,250.81
  5. Step 5: Solve for x
    x = 100,916,250.81/12,693.18
  6. Step 6: Final answer
    x = 7,950.43

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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.