Home / 10,153.84-15,240.36-5,540.08

Finding the Fourth Proportional to 10,153.84, 15,240.36 and 5,540.08

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Solution

The fourth proportional to 10,153.84, 15,240.36 and 5,540.08 is: 8,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.84 : 15,240.36 = 5,540.08 : x
  2. Step 2: Convert to fraction form
    10,153.84/15,240.36 = 5,540.08/x
  3. Step 3: Cross multiply
    10,153.84x = 15,240.36 × 5,540.08
  4. Step 4: Simplify right side
    10,153.84x = 84,432,813.63
  5. Step 5: Solve for x
    x = 84,432,813.63/10,153.84
  6. Step 6: Final answer
    x = 8,315.36

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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.