Home / 13,573.95-18,730.32-7,910.52

Finding the Fourth Proportional to 13,573.95, 18,730.32 and 7,910.52

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Solution

The fourth proportional to 13,573.95, 18,730.32 and 7,910.52 is: 10,915.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.95 : 18,730.32 = 7,910.52 : x
  2. Step 2: Convert to fraction form
    13,573.95/18,730.32 = 7,910.52/x
  3. Step 3: Cross multiply
    13,573.95x = 18,730.32 × 7,910.52
  4. Step 4: Simplify right side
    13,573.95x = 148,166,570.97
  5. Step 5: Solve for x
    x = 148,166,570.97/13,573.95
  6. Step 6: Final answer
    x = 10,915.51

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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.