Home / 8,678.37-13,008.80-3,417.08

Finding the Fourth Proportional to 8,678.37, 13,008.80 and 3,417.08

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Solution

The fourth proportional to 8,678.37, 13,008.80 and 3,417.08 is: 5,122.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.37 : 13,008.80 = 3,417.08 : x
  2. Step 2: Convert to fraction form
    8,678.37/13,008.80 = 3,417.08/x
  3. Step 3: Cross multiply
    8,678.37x = 13,008.80 × 3,417.08
  4. Step 4: Simplify right side
    8,678.37x = 44,452,040.37
  5. Step 5: Solve for x
    x = 44,452,040.37/8,678.37
  6. Step 6: Final answer
    x = 5,122.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.