Home / 10,528.20-14,528.90-5,812.48

Finding the Fourth Proportional to 10,528.20, 14,528.90 and 5,812.48

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Solution

The fourth proportional to 10,528.20, 14,528.90 and 5,812.48 is: 8,021.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.20 : 14,528.90 = 5,812.48 : x
  2. Step 2: Convert to fraction form
    10,528.20/14,528.90 = 5,812.48/x
  3. Step 3: Cross multiply
    10,528.20x = 14,528.90 × 5,812.48
  4. Step 4: Simplify right side
    10,528.20x = 84,448,940.67
  5. Step 5: Solve for x
    x = 84,448,940.67/10,528.20
  6. Step 6: Final answer
    x = 8,021.21

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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.