Home / 9,915.04-13,681.78-5,936.07

Finding the Fourth Proportional to 9,915.04, 13,681.78 and 5,936.07

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Solution

The fourth proportional to 9,915.04, 13,681.78 and 5,936.07 is: 8,191.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.04 : 13,681.78 = 5,936.07 : x
  2. Step 2: Convert to fraction form
    9,915.04/13,681.78 = 5,936.07/x
  3. Step 3: Cross multiply
    9,915.04x = 13,681.78 × 5,936.07
  4. Step 4: Simplify right side
    9,915.04x = 81,216,003.80
  5. Step 5: Solve for x
    x = 81,216,003.80/9,915.04
  6. Step 6: Final answer
    x = 8,191.19

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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.