Home / 13,943.04-19,241.40-7,655.80

Finding the Fourth Proportional to 13,943.04, 19,241.40 and 7,655.80

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Solution

The fourth proportional to 13,943.04, 19,241.40 and 7,655.80 is: 10,565.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.04 : 19,241.40 = 7,655.80 : x
  2. Step 2: Convert to fraction form
    13,943.04/19,241.40 = 7,655.80/x
  3. Step 3: Cross multiply
    13,943.04x = 19,241.40 × 7,655.80
  4. Step 4: Simplify right side
    13,943.04x = 147,308,310.12
  5. Step 5: Solve for x
    x = 147,308,310.12/13,943.04
  6. Step 6: Final answer
    x = 10,565.01

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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.