Home / 10,122.94-13,970.87-5,931.19

Finding the Fourth Proportional to 10,122.94, 13,970.87 and 5,931.19

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Solution

The fourth proportional to 10,122.94, 13,970.87 and 5,931.19 is: 8,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.94 : 13,970.87 = 5,931.19 : x
  2. Step 2: Convert to fraction form
    10,122.94/13,970.87 = 5,931.19/x
  3. Step 3: Cross multiply
    10,122.94x = 13,970.87 × 5,931.19
  4. Step 4: Simplify right side
    10,122.94x = 82,863,864.34
  5. Step 5: Solve for x
    x = 82,863,864.34/10,122.94
  6. Step 6: Final answer
    x = 8,185.75

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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.