Home / 13,449.57-18,561.30-7,482.30

Finding the Fourth Proportional to 13,449.57, 18,561.30 and 7,482.30

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Solution

The fourth proportional to 13,449.57, 18,561.30 and 7,482.30 is: 10,326.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.57 : 18,561.30 = 7,482.30 : x
  2. Step 2: Convert to fraction form
    13,449.57/18,561.30 = 7,482.30/x
  3. Step 3: Cross multiply
    13,449.57x = 18,561.30 × 7,482.30
  4. Step 4: Simplify right side
    13,449.57x = 138,881,214.99
  5. Step 5: Solve for x
    x = 138,881,214.99/13,449.57
  6. Step 6: Final answer
    x = 10,326.07

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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.