Home / 13,777.68-19,013.32-7,490.06

Finding the Fourth Proportional to 13,777.68, 19,013.32 and 7,490.06

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Solution

The fourth proportional to 13,777.68, 19,013.32 and 7,490.06 is: 10,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.68 : 19,013.32 = 7,490.06 : x
  2. Step 2: Convert to fraction form
    13,777.68/19,013.32 = 7,490.06/x
  3. Step 3: Cross multiply
    13,777.68x = 19,013.32 × 7,490.06
  4. Step 4: Simplify right side
    13,777.68x = 142,410,907.60
  5. Step 5: Solve for x
    x = 142,410,907.60/13,777.68
  6. Step 6: Final answer
    x = 10,336.35

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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.