Home / 10,042.80-15,064.20-3,116.40

Finding the Fourth Proportional to 10,042.80, 15,064.20 and 3,116.40

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Solution

The fourth proportional to 10,042.80, 15,064.20 and 3,116.40 is: 4,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,042.80 : 15,064.20 = 3,116.40 : x
  2. Step 2: Convert to fraction form
    10,042.80/15,064.20 = 3,116.40/x
  3. Step 3: Cross multiply
    10,042.80x = 15,064.20 × 3,116.40
  4. Step 4: Simplify right side
    10,042.80x = 46,946,072.88
  5. Step 5: Solve for x
    x = 46,946,072.88/10,042.80
  6. Step 6: Final answer
    x = 4,674.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.