Home / 13,968.68-19,276.62-7,681.28

Finding the Fourth Proportional to 13,968.68, 19,276.62 and 7,681.28

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Solution

The fourth proportional to 13,968.68, 19,276.62 and 7,681.28 is: 10,600.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.68 : 19,276.62 = 7,681.28 : x
  2. Step 2: Convert to fraction form
    13,968.68/19,276.62 = 7,681.28/x
  3. Step 3: Cross multiply
    13,968.68x = 19,276.62 × 7,681.28
  4. Step 4: Simplify right side
    13,968.68x = 148,069,115.67
  5. Step 5: Solve for x
    x = 148,069,115.67/13,968.68
  6. Step 6: Final answer
    x = 10,600.08

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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.