Home / 13,459.80-18,574.38-7,410.36

Finding the Fourth Proportional to 13,459.80, 18,574.38 and 7,410.36

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Solution

The fourth proportional to 13,459.80, 18,574.38 and 7,410.36 is: 10,226.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.80 : 18,574.38 = 7,410.36 : x
  2. Step 2: Convert to fraction form
    13,459.80/18,574.38 = 7,410.36/x
  3. Step 3: Cross multiply
    13,459.80x = 18,574.38 × 7,410.36
  4. Step 4: Simplify right side
    13,459.80x = 137,642,842.58
  5. Step 5: Solve for x
    x = 137,642,842.58/13,459.80
  6. Step 6: Final answer
    x = 10,226.22

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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.