Home / 15,289.18-21,098.13-8,574.33

Finding the Fourth Proportional to 15,289.18, 21,098.13 and 8,574.33

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Solution

The fourth proportional to 15,289.18, 21,098.13 and 8,574.33 is: 11,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.18 : 21,098.13 = 8,574.33 : x
  2. Step 2: Convert to fraction form
    15,289.18/21,098.13 = 8,574.33/x
  3. Step 3: Cross multiply
    15,289.18x = 21,098.13 × 8,574.33
  4. Step 4: Simplify right side
    15,289.18x = 180,902,329.00
  5. Step 5: Solve for x
    x = 180,902,329.00/15,289.18
  6. Step 6: Final answer
    x = 11,832.05

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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.