Home / 14,045.36-19,381.90-7,757.60

Finding the Fourth Proportional to 14,045.36, 19,381.90 and 7,757.60

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Solution

The fourth proportional to 14,045.36, 19,381.90 and 7,757.60 is: 10,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045.36 : 19,381.90 = 7,757.60 : x
  2. Step 2: Convert to fraction form
    14,045.36/19,381.90 = 7,757.60/x
  3. Step 3: Cross multiply
    14,045.36x = 19,381.90 × 7,757.60
  4. Step 4: Simplify right side
    14,045.36x = 150,357,027.44
  5. Step 5: Solve for x
    x = 150,357,027.44/14,045.36
  6. Step 6: Final answer
    x = 10,705.10

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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.