Home / 13,645.95-18,830.07-7,677.49

Finding the Fourth Proportional to 13,645.95, 18,830.07 and 7,677.49

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Solution

The fourth proportional to 13,645.95, 18,830.07 and 7,677.49 is: 10,594.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.95 : 18,830.07 = 7,677.49 : x
  2. Step 2: Convert to fraction form
    13,645.95/18,830.07 = 7,677.49/x
  3. Step 3: Cross multiply
    13,645.95x = 18,830.07 × 7,677.49
  4. Step 4: Simplify right side
    13,645.95x = 144,567,674.12
  5. Step 5: Solve for x
    x = 144,567,674.12/13,645.95
  6. Step 6: Final answer
    x = 10,594.18

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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.