Home / 13,089.06-18,062.73-8,615.23

Finding the Fourth Proportional to 13,089.06, 18,062.73 and 8,615.23

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Solution

The fourth proportional to 13,089.06, 18,062.73 and 8,615.23 is: 11,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.06 : 18,062.73 = 8,615.23 : x
  2. Step 2: Convert to fraction form
    13,089.06/18,062.73 = 8,615.23/x
  3. Step 3: Cross multiply
    13,089.06x = 18,062.73 × 8,615.23
  4. Step 4: Simplify right side
    13,089.06x = 155,614,528.22
  5. Step 5: Solve for x
    x = 155,614,528.22/13,089.06
  6. Step 6: Final answer
    x = 11,888.90

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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.