Home / 13,058.27-18,020.30-7,089.81

Finding the Fourth Proportional to 13,058.27, 18,020.30 and 7,089.81

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Solution

The fourth proportional to 13,058.27, 18,020.30 and 7,089.81 is: 9,783.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.27 : 18,020.30 = 7,089.81 : x
  2. Step 2: Convert to fraction form
    13,058.27/18,020.30 = 7,089.81/x
  3. Step 3: Cross multiply
    13,058.27x = 18,020.30 × 7,089.81
  4. Step 4: Simplify right side
    13,058.27x = 127,760,565.92
  5. Step 5: Solve for x
    x = 127,760,565.92/13,058.27
  6. Step 6: Final answer
    x = 9,783.89

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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.