Home / 13,931.46-19,225.62-7,963.52

Finding the Fourth Proportional to 13,931.46, 19,225.62 and 7,963.52

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Solution

The fourth proportional to 13,931.46, 19,225.62 and 7,963.52 is: 10,989.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.46 : 19,225.62 = 7,963.52 : x
  2. Step 2: Convert to fraction form
    13,931.46/19,225.62 = 7,963.52/x
  3. Step 3: Cross multiply
    13,931.46x = 19,225.62 × 7,963.52
  4. Step 4: Simplify right side
    13,931.46x = 153,103,513.25
  5. Step 5: Solve for x
    x = 153,103,513.25/13,931.46
  6. Step 6: Final answer
    x = 10,989.77

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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.