Home / 13,410.36-18,506.68-7,360.88

Finding the Fourth Proportional to 13,410.36, 18,506.68 and 7,360.88

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Solution

The fourth proportional to 13,410.36, 18,506.68 and 7,360.88 is: 10,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.36 : 18,506.68 = 7,360.88 : x
  2. Step 2: Convert to fraction form
    13,410.36/18,506.68 = 7,360.88/x
  3. Step 3: Cross multiply
    13,410.36x = 18,506.68 × 7,360.88
  4. Step 4: Simplify right side
    13,410.36x = 136,225,339.74
  5. Step 5: Solve for x
    x = 136,225,339.74/13,410.36
  6. Step 6: Final answer
    x = 10,158.22

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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.