Home / 19,072.40-28,605.36-5,218.16

Finding the Fourth Proportional to 19,072.40, 28,605.36 and 5,218.16

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Solution

The fourth proportional to 19,072.40, 28,605.36 and 5,218.16 is: 7,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,072.40 : 28,605.36 = 5,218.16 : x
  2. Step 2: Convert to fraction form
    19,072.40/28,605.36 = 5,218.16/x
  3. Step 3: Cross multiply
    19,072.40x = 28,605.36 × 5,218.16
  4. Step 4: Simplify right side
    19,072.40x = 149,267,345.34
  5. Step 5: Solve for x
    x = 149,267,345.34/19,072.40
  6. Step 6: Final answer
    x = 7,826.35

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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.