Home / 15,436.96-21,303.04-8,363.36

Finding the Fourth Proportional to 15,436.96, 21,303.04 and 8,363.36

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Solution

The fourth proportional to 15,436.96, 21,303.04 and 8,363.36 is: 11,541.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.96 : 21,303.04 = 8,363.36 : x
  2. Step 2: Convert to fraction form
    15,436.96/21,303.04 = 8,363.36/x
  3. Step 3: Cross multiply
    15,436.96x = 21,303.04 × 8,363.36
  4. Step 4: Simplify right side
    15,436.96x = 178,164,992.61
  5. Step 5: Solve for x
    x = 178,164,992.61/15,436.96
  6. Step 6: Final answer
    x = 11,541.46

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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.