Home / 14,028.24-19,363.08-8,720.40

Finding the Fourth Proportional to 14,028.24, 19,363.08 and 8,720.40

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Solution

The fourth proportional to 14,028.24, 19,363.08 and 8,720.40 is: 12,036.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.24 : 19,363.08 = 8,720.40 : x
  2. Step 2: Convert to fraction form
    14,028.24/19,363.08 = 8,720.40/x
  3. Step 3: Cross multiply
    14,028.24x = 19,363.08 × 8,720.40
  4. Step 4: Simplify right side
    14,028.24x = 168,853,802.83
  5. Step 5: Solve for x
    x = 168,853,802.83/14,028.24
  6. Step 6: Final answer
    x = 12,036.71

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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.