Home / 19,040.08-28,557.96-5,190.16

Finding the Fourth Proportional to 19,040.08, 28,557.96 and 5,190.16

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Solution

The fourth proportional to 19,040.08, 28,557.96 and 5,190.16 is: 7,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.08 : 28,557.96 = 5,190.16 : x
  2. Step 2: Convert to fraction form
    19,040.08/28,557.96 = 5,190.16/x
  3. Step 3: Cross multiply
    19,040.08x = 28,557.96 × 5,190.16
  4. Step 4: Simplify right side
    19,040.08x = 148,220,381.67
  5. Step 5: Solve for x
    x = 148,220,381.67/19,040.08
  6. Step 6: Final answer
    x = 7,784.65

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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.