Home / 12,020.57-16,588.33-6,643.01

Finding the Fourth Proportional to 12,020.57, 16,588.33 and 6,643.01

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Solution

The fourth proportional to 12,020.57, 16,588.33 and 6,643.01 is: 9,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.57 : 16,588.33 = 6,643.01 : x
  2. Step 2: Convert to fraction form
    12,020.57/16,588.33 = 6,643.01/x
  3. Step 3: Cross multiply
    12,020.57x = 16,588.33 × 6,643.01
  4. Step 4: Simplify right side
    12,020.57x = 110,196,442.07
  5. Step 5: Solve for x
    x = 110,196,442.07/12,020.57
  6. Step 6: Final answer
    x = 9,167.32

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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.