Home / 13,571.51-18,729.45-7,605.10

Finding the Fourth Proportional to 13,571.51, 18,729.45 and 7,605.10

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Solution

The fourth proportional to 13,571.51, 18,729.45 and 7,605.10 is: 10,495.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.51 : 18,729.45 = 7,605.10 : x
  2. Step 2: Convert to fraction form
    13,571.51/18,729.45 = 7,605.10/x
  3. Step 3: Cross multiply
    13,571.51x = 18,729.45 × 7,605.10
  4. Step 4: Simplify right side
    13,571.51x = 142,439,340.20
  5. Step 5: Solve for x
    x = 142,439,340.20/13,571.51
  6. Step 6: Final answer
    x = 10,495.47

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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.