Home / 13,826.69-19,080.93-7,539.06

Finding the Fourth Proportional to 13,826.69, 19,080.93 and 7,539.06

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Solution

The fourth proportional to 13,826.69, 19,080.93 and 7,539.06 is: 10,403.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.69 : 19,080.93 = 7,539.06 : x
  2. Step 2: Convert to fraction form
    13,826.69/19,080.93 = 7,539.06/x
  3. Step 3: Cross multiply
    13,826.69x = 19,080.93 × 7,539.06
  4. Step 4: Simplify right side
    13,826.69x = 143,852,276.13
  5. Step 5: Solve for x
    x = 143,852,276.13/13,826.69
  6. Step 6: Final answer
    x = 10,403.96

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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.