Home / 13,328.60-19,995.74-3,968.66

Finding the Fourth Proportional to 13,328.60, 19,995.74 and 3,968.66

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Solution

The fourth proportional to 13,328.60, 19,995.74 and 3,968.66 is: 5,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.60 : 19,995.74 = 3,968.66 : x
  2. Step 2: Convert to fraction form
    13,328.60/19,995.74 = 3,968.66/x
  3. Step 3: Cross multiply
    13,328.60x = 19,995.74 × 3,968.66
  4. Step 4: Simplify right side
    13,328.60x = 79,356,293.51
  5. Step 5: Solve for x
    x = 79,356,293.51/13,328.60
  6. Step 6: Final answer
    x = 5,953.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.