Home / 13,851.03-19,116.02-7,801.32

Finding the Fourth Proportional to 13,851.03, 19,116.02 and 7,801.32

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Solution

The fourth proportional to 13,851.03, 19,116.02 and 7,801.32 is: 10,766.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.03 : 19,116.02 = 7,801.32 : x
  2. Step 2: Convert to fraction form
    13,851.03/19,116.02 = 7,801.32/x
  3. Step 3: Cross multiply
    13,851.03x = 19,116.02 × 7,801.32
  4. Step 4: Simplify right side
    13,851.03x = 149,130,189.15
  5. Step 5: Solve for x
    x = 149,130,189.15/13,851.03
  6. Step 6: Final answer
    x = 10,766.72

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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.