Home / 10,439.10-15,661.07-3,513.60

Finding the Fourth Proportional to 10,439.10, 15,661.07 and 3,513.60

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Solution

The fourth proportional to 10,439.10, 15,661.07 and 3,513.60 is: 5,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.10 : 15,661.07 = 3,513.60 : x
  2. Step 2: Convert to fraction form
    10,439.10/15,661.07 = 3,513.60/x
  3. Step 3: Cross multiply
    10,439.10x = 15,661.07 × 3,513.60
  4. Step 4: Simplify right side
    10,439.10x = 55,026,657.25
  5. Step 5: Solve for x
    x = 55,026,657.25/10,439.10
  6. Step 6: Final answer
    x = 5,271.21

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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.