Home / 13,539.23-18,684.57-7,570.89

Finding the Fourth Proportional to 13,539.23, 18,684.57 and 7,570.89

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Solution

The fourth proportional to 13,539.23, 18,684.57 and 7,570.89 is: 10,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.23 : 18,684.57 = 7,570.89 : x
  2. Step 2: Convert to fraction form
    13,539.23/18,684.57 = 7,570.89/x
  3. Step 3: Cross multiply
    13,539.23x = 18,684.57 × 7,570.89
  4. Step 4: Simplify right side
    13,539.23x = 141,458,730.74
  5. Step 5: Solve for x
    x = 141,458,730.74/13,539.23
  6. Step 6: Final answer
    x = 10,448.06

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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.