Home / 10,255.95-15,296.49-10,078.38

Finding the Fourth Proportional to 10,255.95, 15,296.49 and 10,078.38

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Solution

The fourth proportional to 10,255.95, 15,296.49 and 10,078.38 is: 15,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.95 : 15,296.49 = 10,078.38 : x
  2. Step 2: Convert to fraction form
    10,255.95/15,296.49 = 10,078.38/x
  3. Step 3: Cross multiply
    10,255.95x = 15,296.49 × 10,078.38
  4. Step 4: Simplify right side
    10,255.95x = 154,163,838.89
  5. Step 5: Solve for x
    x = 154,163,838.89/10,255.95
  6. Step 6: Final answer
    x = 15,031.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.