Home / 12,861,808.53-17,748,643.95-7,635,040.13

Finding the Fourth Proportional to 12,861,808.53, 17,748,643.95 and 7,635,040.13

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Solution

The fourth proportional to 12,861,808.53, 17,748,643.95 and 7,635,040.13 is: 10,535,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861,808.53 : 17,748,643.95 = 7,635,040.13 : x
  2. Step 2: Convert to fraction form
    12,861,808.53/17,748,643.95 = 7,635,040.13/x
  3. Step 3: Cross multiply
    12,861,808.53x = 17,748,643.95 × 7,635,040.13
  4. Step 4: Simplify right side
    12,861,808.53x = 135,511,608,722,588.48
  5. Step 5: Solve for x
    x = 135,511,608,722,588.48/12,861,808.53
  6. Step 6: Final answer
    x = 10,535,968.44

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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.