Home / 13,071.60-19,615.50-5,280.48

Finding the Fourth Proportional to 13,071.60, 19,615.50 and 5,280.48

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Solution

The fourth proportional to 13,071.60, 19,615.50 and 5,280.48 is: 7,923.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.60 : 19,615.50 = 5,280.48 : x
  2. Step 2: Convert to fraction form
    13,071.60/19,615.50 = 5,280.48/x
  3. Step 3: Cross multiply
    13,071.60x = 19,615.50 × 5,280.48
  4. Step 4: Simplify right side
    13,071.60x = 103,579,255.44
  5. Step 5: Solve for x
    x = 103,579,255.44/13,071.60
  6. Step 6: Final answer
    x = 7,923.99

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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.