Home / 15,389.27-21,239.19-8,677.00

Finding the Fourth Proportional to 15,389.27, 21,239.19 and 8,677.00

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Solution

The fourth proportional to 15,389.27, 21,239.19 and 8,677.00 is: 11,975.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.27 : 21,239.19 = 8,677.00 : x
  2. Step 2: Convert to fraction form
    15,389.27/21,239.19 = 8,677.00/x
  3. Step 3: Cross multiply
    15,389.27x = 21,239.19 × 8,677.00
  4. Step 4: Simplify right side
    15,389.27x = 184,292,394.04
  5. Step 5: Solve for x
    x = 184,292,394.04/15,389.27
  6. Step 6: Final answer
    x = 11,975.39

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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.