Home / 7,849.47-10,821.45-6,261.51

Finding the Fourth Proportional to 7,849.47, 10,821.45 and 6,261.51

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Solution

The fourth proportional to 7,849.47, 10,821.45 and 6,261.51 is: 8,632.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.47 : 10,821.45 = 6,261.51 : x
  2. Step 2: Convert to fraction form
    7,849.47/10,821.45 = 6,261.51/x
  3. Step 3: Cross multiply
    7,849.47x = 10,821.45 × 6,261.51
  4. Step 4: Simplify right side
    7,849.47x = 67,758,570.14
  5. Step 5: Solve for x
    x = 67,758,570.14/7,849.47
  6. Step 6: Final answer
    x = 8,632.24

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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.