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Finding the Fourth Proportional to 10,533.89, 15,802.90 and 3,513.80

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Solution

The fourth proportional to 10,533.89, 15,802.90 and 3,513.80 is: 5,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,533.89 : 15,802.90 = 3,513.80 : x
  2. Step 2: Convert to fraction form
    10,533.89/15,802.90 = 3,513.80/x
  3. Step 3: Cross multiply
    10,533.89x = 15,802.90 × 3,513.80
  4. Step 4: Simplify right side
    10,533.89x = 55,528,230.02
  5. Step 5: Solve for x
    x = 55,528,230.02/10,533.89
  6. Step 6: Final answer
    x = 5,271.39

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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.