Home / 7,540.02-10,403.70-4,887.06

Finding the Fourth Proportional to 7,540.02, 10,403.70 and 4,887.06

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Solution

The fourth proportional to 7,540.02, 10,403.70 and 4,887.06 is: 6,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.02 : 10,403.70 = 4,887.06 : x
  2. Step 2: Convert to fraction form
    7,540.02/10,403.70 = 4,887.06/x
  3. Step 3: Cross multiply
    7,540.02x = 10,403.70 × 4,887.06
  4. Step 4: Simplify right side
    7,540.02x = 50,843,506.12
  5. Step 5: Solve for x
    x = 50,843,506.12/7,540.02
  6. Step 6: Final answer
    x = 6,743.15

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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.