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Finding the Fourth Proportional to 10,012.19, 15,010.99 and 4,811.99

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Solution

The fourth proportional to 10,012.19, 15,010.99 and 4,811.99 is: 7,214.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,012.19 : 15,010.99 = 4,811.99 : x
  2. Step 2: Convert to fraction form
    10,012.19/15,010.99 = 4,811.99/x
  3. Step 3: Cross multiply
    10,012.19x = 15,010.99 × 4,811.99
  4. Step 4: Simplify right side
    10,012.19x = 72,232,646.69
  5. Step 5: Solve for x
    x = 72,232,646.69/10,012.19
  6. Step 6: Final answer
    x = 7,214.47

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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.