Home / 19,457.60-29,164.40-7,757.12

Finding the Fourth Proportional to 19,457.60, 29,164.40 and 7,757.12

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Solution

The fourth proportional to 19,457.60, 29,164.40 and 7,757.12 is: 11,626.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,457.60 : 29,164.40 = 7,757.12 : x
  2. Step 2: Convert to fraction form
    19,457.60/29,164.40 = 7,757.12/x
  3. Step 3: Cross multiply
    19,457.60x = 29,164.40 × 7,757.12
  4. Step 4: Simplify right side
    19,457.60x = 226,231,750.53
  5. Step 5: Solve for x
    x = 226,231,750.53/19,457.60
  6. Step 6: Final answer
    x = 11,626.91

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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.