Home / 13,159.53-18,159.39-7,191.26

Finding the Fourth Proportional to 13,159.53, 18,159.39 and 7,191.26

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Solution

The fourth proportional to 13,159.53, 18,159.39 and 7,191.26 is: 9,923.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.53 : 18,159.39 = 7,191.26 : x
  2. Step 2: Convert to fraction form
    13,159.53/18,159.39 = 7,191.26/x
  3. Step 3: Cross multiply
    13,159.53x = 18,159.39 × 7,191.26
  4. Step 4: Simplify right side
    13,159.53x = 130,588,804.13
  5. Step 5: Solve for x
    x = 130,588,804.13/13,159.53
  6. Step 6: Final answer
    x = 9,923.52

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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.