Home / 15,377.40-21,175.02-14,261.03

Finding the Fourth Proportional to 15,377.40, 21,175.02 and 14,261.03

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Solution

The fourth proportional to 15,377.40, 21,175.02 and 14,261.03 is: 19,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,377.40 : 21,175.02 = 14,261.03 : x
  2. Step 2: Convert to fraction form
    15,377.40/21,175.02 = 14,261.03/x
  3. Step 3: Cross multiply
    15,377.40x = 21,175.02 × 14,261.03
  4. Step 4: Simplify right side
    15,377.40x = 301,977,489.60
  5. Step 5: Solve for x
    x = 301,977,489.60/15,377.40
  6. Step 6: Final answer
    x = 19,637.75

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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.