Home / 14,268.12-19,689.63-7,894.55

Finding the Fourth Proportional to 14,268.12, 19,689.63 and 7,894.55

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Solution

The fourth proportional to 14,268.12, 19,689.63 and 7,894.55 is: 10,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.12 : 19,689.63 = 7,894.55 : x
  2. Step 2: Convert to fraction form
    14,268.12/19,689.63 = 7,894.55/x
  3. Step 3: Cross multiply
    14,268.12x = 19,689.63 × 7,894.55
  4. Step 4: Simplify right side
    14,268.12x = 155,440,758.71
  5. Step 5: Solve for x
    x = 155,440,758.71/14,268.12
  6. Step 6: Final answer
    x = 10,894.27

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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.