Home / 15,129.36-22,690.80-6,361.92

Finding the Fourth Proportional to 15,129.36, 22,690.80 and 6,361.92

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Solution

The fourth proportional to 15,129.36, 22,690.80 and 6,361.92 is: 9,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.36 : 22,690.80 = 6,361.92 : x
  2. Step 2: Convert to fraction form
    15,129.36/22,690.80 = 6,361.92/x
  3. Step 3: Cross multiply
    15,129.36x = 22,690.80 × 6,361.92
  4. Step 4: Simplify right side
    15,129.36x = 144,357,054.34
  5. Step 5: Solve for x
    x = 144,357,054.34/15,129.36
  6. Step 6: Final answer
    x = 9,541.52

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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.