Home / 15,415.74-23,130.78-4,887.42

Finding the Fourth Proportional to 15,415.74, 23,130.78 and 4,887.42

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Solution

The fourth proportional to 15,415.74, 23,130.78 and 4,887.42 is: 7,333.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.74 : 23,130.78 = 4,887.42 : x
  2. Step 2: Convert to fraction form
    15,415.74/23,130.78 = 4,887.42/x
  3. Step 3: Cross multiply
    15,415.74x = 23,130.78 × 4,887.42
  4. Step 4: Simplify right side
    15,415.74x = 113,049,836.79
  5. Step 5: Solve for x
    x = 113,049,836.79/15,415.74
  6. Step 6: Final answer
    x = 7,333.40

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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.