Home / 8,263.19-11,405.13-5,281.58

Finding the Fourth Proportional to 8,263.19, 11,405.13 and 5,281.58

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Solution

The fourth proportional to 8,263.19, 11,405.13 and 5,281.58 is: 7,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,263.19 : 11,405.13 = 5,281.58 : x
  2. Step 2: Convert to fraction form
    8,263.19/11,405.13 = 5,281.58/x
  3. Step 3: Cross multiply
    8,263.19x = 11,405.13 × 5,281.58
  4. Step 4: Simplify right side
    8,263.19x = 60,237,106.51
  5. Step 5: Solve for x
    x = 60,237,106.51/8,263.19
  6. Step 6: Final answer
    x = 7,289.81

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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.