Home / 14,255.52-19,679.16-10,478.70

Finding the Fourth Proportional to 14,255.52, 19,679.16 and 10,478.70

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Solution

The fourth proportional to 14,255.52, 19,679.16 and 10,478.70 is: 14,465.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.52 : 19,679.16 = 10,478.70 : x
  2. Step 2: Convert to fraction form
    14,255.52/19,679.16 = 10,478.70/x
  3. Step 3: Cross multiply
    14,255.52x = 19,679.16 × 10,478.70
  4. Step 4: Simplify right side
    14,255.52x = 206,212,013.89
  5. Step 5: Solve for x
    x = 206,212,013.89/14,255.52
  6. Step 6: Final answer
    x = 14,465.42

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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.