Home / 15,084.22-20,807.66-9,485.50

Finding the Fourth Proportional to 15,084.22, 20,807.66 and 9,485.50

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Solution

The fourth proportional to 15,084.22, 20,807.66 and 9,485.50 is: 13,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,084.22 : 20,807.66 = 9,485.50 : x
  2. Step 2: Convert to fraction form
    15,084.22/20,807.66 = 9,485.50/x
  3. Step 3: Cross multiply
    15,084.22x = 20,807.66 × 9,485.50
  4. Step 4: Simplify right side
    15,084.22x = 197,371,058.93
  5. Step 5: Solve for x
    x = 197,371,058.93/15,084.22
  6. Step 6: Final answer
    x = 13,084.60

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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.