Home / 13,645.48-18,830.69-7,677.19

Finding the Fourth Proportional to 13,645.48, 18,830.69 and 7,677.19

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Solution

The fourth proportional to 13,645.48, 18,830.69 and 7,677.19 is: 10,594.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.48 : 18,830.69 = 7,677.19 : x
  2. Step 2: Convert to fraction form
    13,645.48/18,830.69 = 7,677.19/x
  3. Step 3: Cross multiply
    13,645.48x = 18,830.69 × 7,677.19
  4. Step 4: Simplify right side
    13,645.48x = 144,566,699.50
  5. Step 5: Solve for x
    x = 144,566,699.50/13,645.48
  6. Step 6: Final answer
    x = 10,594.48

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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.