Home / 15,803.78-23,705.70-10,858.40

Finding the Fourth Proportional to 15,803.78, 23,705.70 and 10,858.40

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Solution

The fourth proportional to 15,803.78, 23,705.70 and 10,858.40 is: 16,287.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,803.78 : 23,705.70 = 10,858.40 : x
  2. Step 2: Convert to fraction form
    15,803.78/23,705.70 = 10,858.40/x
  3. Step 3: Cross multiply
    15,803.78x = 23,705.70 × 10,858.40
  4. Step 4: Simplify right side
    15,803.78x = 257,405,972.88
  5. Step 5: Solve for x
    x = 257,405,972.88/15,803.78
  6. Step 6: Final answer
    x = 16,287.62

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1.5x scale

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.