Home / 13,159.42-18,159.76-7,190.93

Finding the Fourth Proportional to 13,159.42, 18,159.76 and 7,190.93

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Solution

The fourth proportional to 13,159.42, 18,159.76 and 7,190.93 is: 9,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.42 : 18,159.76 = 7,190.93 : x
  2. Step 2: Convert to fraction form
    13,159.42/18,159.76 = 7,190.93/x
  3. Step 3: Cross multiply
    13,159.42x = 18,159.76 × 7,190.93
  4. Step 4: Simplify right side
    13,159.42x = 130,585,562.98
  5. Step 5: Solve for x
    x = 130,585,562.98/13,159.42
  6. Step 6: Final answer
    x = 9,923.35

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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.