Home / 13,343.77-18,412.80-7,374.62

Finding the Fourth Proportional to 13,343.77, 18,412.80 and 7,374.62

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Solution

The fourth proportional to 13,343.77, 18,412.80 and 7,374.62 is: 10,176.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.77 : 18,412.80 = 7,374.62 : x
  2. Step 2: Convert to fraction form
    13,343.77/18,412.80 = 7,374.62/x
  3. Step 3: Cross multiply
    13,343.77x = 18,412.80 × 7,374.62
  4. Step 4: Simplify right side
    13,343.77x = 135,787,421.51
  5. Step 5: Solve for x
    x = 135,787,421.51/13,343.77
  6. Step 6: Final answer
    x = 10,176.09

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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.