Home / 8,973.90-12,389.67-6,146.01

Finding the Fourth Proportional to 8,973.90, 12,389.67 and 6,146.01

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Solution

The fourth proportional to 8,973.90, 12,389.67 and 6,146.01 is: 8,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.90 : 12,389.67 = 6,146.01 : x
  2. Step 2: Convert to fraction form
    8,973.90/12,389.67 = 6,146.01/x
  3. Step 3: Cross multiply
    8,973.90x = 12,389.67 × 6,146.01
  4. Step 4: Simplify right side
    8,973.90x = 76,147,035.72
  5. Step 5: Solve for x
    x = 76,147,035.72/8,973.90
  6. Step 6: Final answer
    x = 8,485.39

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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.