Home / 13,968.70-19,280.91-8,307.46

Finding the Fourth Proportional to 13,968.70, 19,280.91 and 8,307.46

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Solution

The fourth proportional to 13,968.70, 19,280.91 and 8,307.46 is: 11,466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.70 : 19,280.91 = 8,307.46 : x
  2. Step 2: Convert to fraction form
    13,968.70/19,280.91 = 8,307.46/x
  3. Step 3: Cross multiply
    13,968.70x = 19,280.91 × 8,307.46
  4. Step 4: Simplify right side
    13,968.70x = 160,175,420.48
  5. Step 5: Solve for x
    x = 160,175,420.48/13,968.70
  6. Step 6: Final answer
    x = 11,466.74

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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.