Home / 7,348.47-10,147.80-5,116.45

Finding the Fourth Proportional to 7,348.47, 10,147.80 and 5,116.45

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Solution

The fourth proportional to 7,348.47, 10,147.80 and 5,116.45 is: 7,065.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,348.47 : 10,147.80 = 5,116.45 : x
  2. Step 2: Convert to fraction form
    7,348.47/10,147.80 = 5,116.45/x
  3. Step 3: Cross multiply
    7,348.47x = 10,147.80 × 5,116.45
  4. Step 4: Simplify right side
    7,348.47x = 51,920,634.99
  5. Step 5: Solve for x
    x = 51,920,634.99/7,348.47
  6. Step 6: Final answer
    x = 7,065.51

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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.