Home / 15,878.28-23,812.98-4,783.35

Finding the Fourth Proportional to 15,878.28, 23,812.98 and 4,783.35

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Solution

The fourth proportional to 15,878.28, 23,812.98 and 4,783.35 is: 7,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.28 : 23,812.98 = 4,783.35 : x
  2. Step 2: Convert to fraction form
    15,878.28/23,812.98 = 4,783.35/x
  3. Step 3: Cross multiply
    15,878.28x = 23,812.98 × 4,783.35
  4. Step 4: Simplify right side
    15,878.28x = 113,905,889.24
  5. Step 5: Solve for x
    x = 113,905,889.24/15,878.28
  6. Step 6: Final answer
    x = 7,173.69

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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.