Home / 10,415.61-15,625.76-3,300.28

Finding the Fourth Proportional to 10,415.61, 15,625.76 and 3,300.28

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Solution

The fourth proportional to 10,415.61, 15,625.76 and 3,300.28 is: 4,951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.61 : 15,625.76 = 3,300.28 : x
  2. Step 2: Convert to fraction form
    10,415.61/15,625.76 = 3,300.28/x
  3. Step 3: Cross multiply
    10,415.61x = 15,625.76 × 3,300.28
  4. Step 4: Simplify right side
    10,415.61x = 51,569,352.40
  5. Step 5: Solve for x
    x = 51,569,352.40/10,415.61
  6. Step 6: Final answer
    x = 4,951.16

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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.