Home / 13,210.51-18,232.37-8,176.35

Finding the Fourth Proportional to 13,210.51, 18,232.37 and 8,176.35

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Solution

The fourth proportional to 13,210.51, 18,232.37 and 8,176.35 is: 11,284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.51 : 18,232.37 = 8,176.35 : x
  2. Step 2: Convert to fraction form
    13,210.51/18,232.37 = 8,176.35/x
  3. Step 3: Cross multiply
    13,210.51x = 18,232.37 × 8,176.35
  4. Step 4: Simplify right side
    13,210.51x = 149,074,238.45
  5. Step 5: Solve for x
    x = 149,074,238.45/13,210.51
  6. Step 6: Final answer
    x = 11,284.52

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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.