Home / 9,750.48-13,455.62-5,274.23

Finding the Fourth Proportional to 9,750.48, 13,455.62 and 5,274.23

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Solution

The fourth proportional to 9,750.48, 13,455.62 and 5,274.23 is: 7,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,750.48 : 13,455.62 = 5,274.23 : x
  2. Step 2: Convert to fraction form
    9,750.48/13,455.62 = 5,274.23/x
  3. Step 3: Cross multiply
    9,750.48x = 13,455.62 × 5,274.23
  4. Step 4: Simplify right side
    9,750.48x = 70,967,941.02
  5. Step 5: Solve for x
    x = 70,967,941.02/9,750.48
  6. Step 6: Final answer
    x = 7,278.40

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Double scale
Find fourth proportional to 9,751.48, 13,456.99 and 5,275.23
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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.