Home / 19,365.40-29,040.72-8,277.22

Finding the Fourth Proportional to 19,365.40, 29,040.72 and 8,277.22

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Solution

The fourth proportional to 19,365.40, 29,040.72 and 8,277.22 is: 12,412.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,365.40 : 29,040.72 = 8,277.22 : x
  2. Step 2: Convert to fraction form
    19,365.40/29,040.72 = 8,277.22/x
  3. Step 3: Cross multiply
    19,365.40x = 29,040.72 × 8,277.22
  4. Step 4: Simplify right side
    19,365.40x = 240,376,428.40
  5. Step 5: Solve for x
    x = 240,376,428.40/19,365.40
  6. Step 6: Final answer
    x = 12,412.68

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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.