Home / 8,889.32-12,266.64-5,485.79

Finding the Fourth Proportional to 8,889.32, 12,266.64 and 5,485.79

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Solution

The fourth proportional to 8,889.32, 12,266.64 and 5,485.79 is: 7,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.32 : 12,266.64 = 5,485.79 : x
  2. Step 2: Convert to fraction form
    8,889.32/12,266.64 = 5,485.79/x
  3. Step 3: Cross multiply
    8,889.32x = 12,266.64 × 5,485.79
  4. Step 4: Simplify right side
    8,889.32x = 67,292,149.71
  5. Step 5: Solve for x
    x = 67,292,149.71/8,889.32
  6. Step 6: Final answer
    x = 7,570.00

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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.