Home / 10,116.20-15,206.70-7,214.60

Finding the Fourth Proportional to 10,116.20, 15,206.70 and 7,214.60

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Solution

The fourth proportional to 10,116.20, 15,206.70 and 7,214.60 is: 10,845.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.20 : 15,206.70 = 7,214.60 : x
  2. Step 2: Convert to fraction form
    10,116.20/15,206.70 = 7,214.60/x
  3. Step 3: Cross multiply
    10,116.20x = 15,206.70 × 7,214.60
  4. Step 4: Simplify right side
    10,116.20x = 109,710,257.82
  5. Step 5: Solve for x
    x = 109,710,257.82/10,116.20
  6. Step 6: Final answer
    x = 10,845.01

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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.