Home / 28,637.19-42,956.60-7,860.69

Finding the Fourth Proportional to 28,637.19, 42,956.60 and 7,860.69

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Solution

The fourth proportional to 28,637.19, 42,956.60 and 7,860.69 is: 11,791.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,637.19 : 42,956.60 = 7,860.69 : x
  2. Step 2: Convert to fraction form
    28,637.19/42,956.60 = 7,860.69/x
  3. Step 3: Cross multiply
    28,637.19x = 42,956.60 × 7,860.69
  4. Step 4: Simplify right side
    28,637.19x = 337,668,516.05
  5. Step 5: Solve for x
    x = 337,668,516.05/28,637.19
  6. Step 6: Final answer
    x = 11,791.26

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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.