Home / 9,240.81-12,752.31-5,261.91

Finding the Fourth Proportional to 9,240.81, 12,752.31 and 5,261.91

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Solution

The fourth proportional to 9,240.81, 12,752.31 and 5,261.91 is: 7,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.81 : 12,752.31 = 5,261.91 : x
  2. Step 2: Convert to fraction form
    9,240.81/12,752.31 = 5,261.91/x
  3. Step 3: Cross multiply
    9,240.81x = 12,752.31 × 5,261.91
  4. Step 4: Simplify right side
    9,240.81x = 67,101,507.51
  5. Step 5: Solve for x
    x = 67,101,507.51/9,240.81
  6. Step 6: Final answer
    x = 7,261.43

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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.