Home / 9,860.61-13,607.39-5,384.43

Finding the Fourth Proportional to 9,860.61, 13,607.39 and 5,384.43

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Solution

The fourth proportional to 9,860.61, 13,607.39 and 5,384.43 is: 7,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.61 : 13,607.39 = 5,384.43 : x
  2. Step 2: Convert to fraction form
    9,860.61/13,607.39 = 5,384.43/x
  3. Step 3: Cross multiply
    9,860.61x = 13,607.39 × 5,384.43
  4. Step 4: Simplify right side
    9,860.61x = 73,268,012.02
  5. Step 5: Solve for x
    x = 73,268,012.02/9,860.61
  6. Step 6: Final answer
    x = 7,430.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.