Home / 13,942.52-19,235.19-7,970.98

Finding the Fourth Proportional to 13,942.52, 19,235.19 and 7,970.98

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Solution

The fourth proportional to 13,942.52, 19,235.19 and 7,970.98 is: 10,996.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.52 : 19,235.19 = 7,970.98 : x
  2. Step 2: Convert to fraction form
    13,942.52/19,235.19 = 7,970.98/x
  3. Step 3: Cross multiply
    13,942.52x = 19,235.19 × 7,970.98
  4. Step 4: Simplify right side
    13,942.52x = 153,323,314.79
  5. Step 5: Solve for x
    x = 153,323,314.79/13,942.52
  6. Step 6: Final answer
    x = 10,996.82

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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.