Home / 8,918.40-12,303.45-6,267.54

Finding the Fourth Proportional to 8,918.40, 12,303.45 and 6,267.54

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Solution

The fourth proportional to 8,918.40, 12,303.45 and 6,267.54 is: 8,646.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.40 : 12,303.45 = 6,267.54 : x
  2. Step 2: Convert to fraction form
    8,918.40/12,303.45 = 6,267.54/x
  3. Step 3: Cross multiply
    8,918.40x = 12,303.45 × 6,267.54
  4. Step 4: Simplify right side
    8,918.40x = 77,112,365.01
  5. Step 5: Solve for x
    x = 77,112,365.01/8,918.40
  6. Step 6: Final answer
    x = 8,646.43

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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.