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Finding the Fourth Proportional to 13,280.90, 19,922.07 and 4,963.10

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Solution

The fourth proportional to 13,280.90, 19,922.07 and 4,963.10 is: 7,444.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.90 : 19,922.07 = 4,963.10 : x
  2. Step 2: Convert to fraction form
    13,280.90/19,922.07 = 4,963.10/x
  3. Step 3: Cross multiply
    13,280.90x = 19,922.07 × 4,963.10
  4. Step 4: Simplify right side
    13,280.90x = 98,875,225.62
  5. Step 5: Solve for x
    x = 98,875,225.62/13,280.90
  6. Step 6: Final answer
    x = 7,444.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.