Home / 14,301.20-19,735.13-7,840.81

Finding the Fourth Proportional to 14,301.20, 19,735.13 and 7,840.81

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Solution

The fourth proportional to 14,301.20, 19,735.13 and 7,840.81 is: 10,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,301.20 : 19,735.13 = 7,840.81 : x
  2. Step 2: Convert to fraction form
    14,301.20/19,735.13 = 7,840.81/x
  3. Step 3: Cross multiply
    14,301.20x = 19,735.13 × 7,840.81
  4. Step 4: Simplify right side
    14,301.20x = 154,739,293.81
  5. Step 5: Solve for x
    x = 154,739,293.81/14,301.20
  6. Step 6: Final answer
    x = 10,820.02

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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.