Home / 8,678.10-13,009.26-3,130.17

Finding the Fourth Proportional to 8,678.10, 13,009.26 and 3,130.17

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Solution

The fourth proportional to 8,678.10, 13,009.26 and 3,130.17 is: 4,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.10 : 13,009.26 = 3,130.17 : x
  2. Step 2: Convert to fraction form
    8,678.10/13,009.26 = 3,130.17/x
  3. Step 3: Cross multiply
    8,678.10x = 13,009.26 × 3,130.17
  4. Step 4: Simplify right side
    8,678.10x = 40,721,195.37
  5. Step 5: Solve for x
    x = 40,721,195.37/8,678.10
  6. Step 6: Final answer
    x = 4,692.41

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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.