Home / 15,452.42-21,323.44-8,739.45

Finding the Fourth Proportional to 15,452.42, 21,323.44 and 8,739.45

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Solution

The fourth proportional to 15,452.42, 21,323.44 and 8,739.45 is: 12,059.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.42 : 21,323.44 = 8,739.45 : x
  2. Step 2: Convert to fraction form
    15,452.42/21,323.44 = 8,739.45/x
  3. Step 3: Cross multiply
    15,452.42x = 21,323.44 × 8,739.45
  4. Step 4: Simplify right side
    15,452.42x = 186,355,094.01
  5. Step 5: Solve for x
    x = 186,355,094.01/15,452.42
  6. Step 6: Final answer
    x = 12,059.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.