Home / 13,058.09-18,019.67-7,089.63

Finding the Fourth Proportional to 13,058.09, 18,019.67 and 7,089.63

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Solution

The fourth proportional to 13,058.09, 18,019.67 and 7,089.63 is: 9,783.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.09 : 18,019.67 = 7,089.63 : x
  2. Step 2: Convert to fraction form
    13,058.09/18,019.67 = 7,089.63/x
  3. Step 3: Cross multiply
    13,058.09x = 18,019.67 × 7,089.63
  4. Step 4: Simplify right side
    13,058.09x = 127,752,797.45
  5. Step 5: Solve for x
    x = 127,752,797.45/13,058.09
  6. Step 6: Final answer
    x = 9,783.42

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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.