Home / 13,280.45-19,920.69-4,516.07

Finding the Fourth Proportional to 13,280.45, 19,920.69 and 4,516.07

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Solution

The fourth proportional to 13,280.45, 19,920.69 and 4,516.07 is: 6,774.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.45 : 19,920.69 = 4,516.07 : x
  2. Step 2: Convert to fraction form
    13,280.45/19,920.69 = 4,516.07/x
  3. Step 3: Cross multiply
    13,280.45x = 19,920.69 × 4,516.07
  4. Step 4: Simplify right side
    13,280.45x = 89,963,130.88
  5. Step 5: Solve for x
    x = 89,963,130.88/13,280.45
  6. Step 6: Final answer
    x = 6,774.11

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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.