Home / 10,637.80-15,963.90-4,791.40

Finding the Fourth Proportional to 10,637.80, 15,963.90 and 4,791.40

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Solution

The fourth proportional to 10,637.80, 15,963.90 and 4,791.40 is: 7,190.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,637.80 : 15,963.90 = 4,791.40 : x
  2. Step 2: Convert to fraction form
    10,637.80/15,963.90 = 4,791.40/x
  3. Step 3: Cross multiply
    10,637.80x = 15,963.90 × 4,791.40
  4. Step 4: Simplify right side
    10,637.80x = 76,489,430.46
  5. Step 5: Solve for x
    x = 76,489,430.46/10,637.80
  6. Step 6: Final answer
    x = 7,190.34

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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.