Home / 13,809.55-19,058.21-7,760.49

Finding the Fourth Proportional to 13,809.55, 19,058.21 and 7,760.49

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Solution

The fourth proportional to 13,809.55, 19,058.21 and 7,760.49 is: 10,710.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.55 : 19,058.21 = 7,760.49 : x
  2. Step 2: Convert to fraction form
    13,809.55/19,058.21 = 7,760.49/x
  3. Step 3: Cross multiply
    13,809.55x = 19,058.21 × 7,760.49
  4. Step 4: Simplify right side
    13,809.55x = 147,901,048.12
  5. Step 5: Solve for x
    x = 147,901,048.12/13,809.55
  6. Step 6: Final answer
    x = 10,710.06

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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.