Home / 13,173.59-18,181.26-7,510.40

Finding the Fourth Proportional to 13,173.59, 18,181.26 and 7,510.40

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Solution

The fourth proportional to 13,173.59, 18,181.26 and 7,510.40 is: 10,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.59 : 18,181.26 = 7,510.40 : x
  2. Step 2: Convert to fraction form
    13,173.59/18,181.26 = 7,510.40/x
  3. Step 3: Cross multiply
    13,173.59x = 18,181.26 × 7,510.40
  4. Step 4: Simplify right side
    13,173.59x = 136,548,535.10
  5. Step 5: Solve for x
    x = 136,548,535.10/13,173.59
  6. Step 6: Final answer
    x = 10,365.32

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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.