Home / 13,405.96-18,499.40-7,356.07

Finding the Fourth Proportional to 13,405.96, 18,499.40 and 7,356.07

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Solution

The fourth proportional to 13,405.96, 18,499.40 and 7,356.07 is: 10,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.96 : 18,499.40 = 7,356.07 : x
  2. Step 2: Convert to fraction form
    13,405.96/18,499.40 = 7,356.07/x
  3. Step 3: Cross multiply
    13,405.96x = 18,499.40 × 7,356.07
  4. Step 4: Simplify right side
    13,405.96x = 136,082,881.36
  5. Step 5: Solve for x
    x = 136,082,881.36/13,405.96
  6. Step 6: Final answer
    x = 10,150.92

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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.