Home / 10,148.94-13,989.66-9,334.32

Finding the Fourth Proportional to 10,148.94, 13,989.66 and 9,334.32

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Solution

The fourth proportional to 10,148.94, 13,989.66 and 9,334.32 is: 12,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,148.94 : 13,989.66 = 9,334.32 : x
  2. Step 2: Convert to fraction form
    10,148.94/13,989.66 = 9,334.32/x
  3. Step 3: Cross multiply
    10,148.94x = 13,989.66 × 9,334.32
  4. Step 4: Simplify right side
    10,148.94x = 130,583,963.13
  5. Step 5: Solve for x
    x = 130,583,963.13/10,148.94
  6. Step 6: Final answer
    x = 12,866.76

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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.