Home / 9,403.02-12,975.66-5,211

Finding the Fourth Proportional to 9,403.02, 12,975.66 and 5,211

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Solution

The fourth proportional to 9,403.02, 12,975.66 and 5,211 is: 7,190.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.02 : 12,975.66 = 5,211 : x
  2. Step 2: Convert to fraction form
    9,403.02/12,975.66 = 5,211/x
  3. Step 3: Cross multiply
    9,403.02x = 12,975.66 × 5,211
  4. Step 4: Simplify right side
    9,403.02x = 67,616,164.26
  5. Step 5: Solve for x
    x = 67,616,164.26/9,403.02
  6. Step 6: Final answer
    x = 7,190.90

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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.