Home / 15,678.15-23,525.31-10,416.78

Finding the Fourth Proportional to 15,678.15, 23,525.31 and 10,416.78

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Solution

The fourth proportional to 15,678.15, 23,525.31 and 10,416.78 is: 15,630.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.15 : 23,525.31 = 10,416.78 : x
  2. Step 2: Convert to fraction form
    15,678.15/23,525.31 = 10,416.78/x
  3. Step 3: Cross multiply
    15,678.15x = 23,525.31 × 10,416.78
  4. Step 4: Simplify right side
    15,678.15x = 245,057,978.70
  5. Step 5: Solve for x
    x = 245,057,978.70/15,678.15
  6. Step 6: Final answer
    x = 15,630.54

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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.