Home / 13,360.18-18,424.43-9,964.68

Finding the Fourth Proportional to 13,360.18, 18,424.43 and 9,964.68

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Solution

The fourth proportional to 13,360.18, 18,424.43 and 9,964.68 is: 13,741.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.18 : 18,424.43 = 9,964.68 : x
  2. Step 2: Convert to fraction form
    13,360.18/18,424.43 = 9,964.68/x
  3. Step 3: Cross multiply
    13,360.18x = 18,424.43 × 9,964.68
  4. Step 4: Simplify right side
    13,360.18x = 183,593,407.19
  5. Step 5: Solve for x
    x = 183,593,407.19/13,360.18
  6. Step 6: Final answer
    x = 13,741.84

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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.