Home / 13,870.48-19,142.60-7,583.80

Finding the Fourth Proportional to 13,870.48, 19,142.60 and 7,583.80

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Solution

The fourth proportional to 13,870.48, 19,142.60 and 7,583.80 is: 10,466.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,870.48 : 19,142.60 = 7,583.80 : x
  2. Step 2: Convert to fraction form
    13,870.48/19,142.60 = 7,583.80/x
  3. Step 3: Cross multiply
    13,870.48x = 19,142.60 × 7,583.80
  4. Step 4: Simplify right side
    13,870.48x = 145,173,649.88
  5. Step 5: Solve for x
    x = 145,173,649.88/13,870.48
  6. Step 6: Final answer
    x = 10,466.38

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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.