Home / 15,184.80-20,946.60-8,895.96

Finding the Fourth Proportional to 15,184.80, 20,946.60 and 8,895.96

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Solution

The fourth proportional to 15,184.80, 20,946.60 and 8,895.96 is: 12,271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.80 : 20,946.60 = 8,895.96 : x
  2. Step 2: Convert to fraction form
    15,184.80/20,946.60 = 8,895.96/x
  3. Step 3: Cross multiply
    15,184.80x = 20,946.60 × 8,895.96
  4. Step 4: Simplify right side
    15,184.80x = 186,340,115.74
  5. Step 5: Solve for x
    x = 186,340,115.74/15,184.80
  6. Step 6: Final answer
    x = 12,271.49

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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.