Home / 13,883.69-19,159.95-7,915.25

Finding the Fourth Proportional to 13,883.69, 19,159.95 and 7,915.25

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Solution

The fourth proportional to 13,883.69, 19,159.95 and 7,915.25 is: 10,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,883.69 : 19,159.95 = 7,915.25 : x
  2. Step 2: Convert to fraction form
    13,883.69/19,159.95 = 7,915.25/x
  3. Step 3: Cross multiply
    13,883.69x = 19,159.95 × 7,915.25
  4. Step 4: Simplify right side
    13,883.69x = 151,655,794.24
  5. Step 5: Solve for x
    x = 151,655,794.24/13,883.69
  6. Step 6: Final answer
    x = 10,923.31

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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.