Home / 13,579.58-18,746.22-9,106.28

Finding the Fourth Proportional to 13,579.58, 18,746.22 and 9,106.28

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Solution

The fourth proportional to 13,579.58, 18,746.22 and 9,106.28 is: 12,570.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.58 : 18,746.22 = 9,106.28 : x
  2. Step 2: Convert to fraction form
    13,579.58/18,746.22 = 9,106.28/x
  3. Step 3: Cross multiply
    13,579.58x = 18,746.22 × 9,106.28
  4. Step 4: Simplify right side
    13,579.58x = 170,708,328.26
  5. Step 5: Solve for x
    x = 170,708,328.26/13,579.58
  6. Step 6: Final answer
    x = 12,570.96

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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.