Home / 15,878.19-23,821.26-4,784.64

Finding the Fourth Proportional to 15,878.19, 23,821.26 and 4,784.64

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Solution

The fourth proportional to 15,878.19, 23,821.26 and 4,784.64 is: 7,178.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.19 : 23,821.26 = 4,784.64 : x
  2. Step 2: Convert to fraction form
    15,878.19/23,821.26 = 4,784.64/x
  3. Step 3: Cross multiply
    15,878.19x = 23,821.26 × 4,784.64
  4. Step 4: Simplify right side
    15,878.19x = 113,976,153.45
  5. Step 5: Solve for x
    x = 113,976,153.45/15,878.19
  6. Step 6: Final answer
    x = 7,178.16

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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.