Home / 12,036.90-18,051.21-4,640.76

Finding the Fourth Proportional to 12,036.90, 18,051.21 and 4,640.76

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Solution

The fourth proportional to 12,036.90, 18,051.21 and 4,640.76 is: 6,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,036.90 : 18,051.21 = 4,640.76 : x
  2. Step 2: Convert to fraction form
    12,036.90/18,051.21 = 4,640.76/x
  3. Step 3: Cross multiply
    12,036.90x = 18,051.21 × 4,640.76
  4. Step 4: Simplify right side
    12,036.90x = 83,771,333.32
  5. Step 5: Solve for x
    x = 83,771,333.32/12,036.90
  6. Step 6: Final answer
    x = 6,959.54

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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.