Home / 19,860.63-27,409.14-12,308.45

Finding the Fourth Proportional to 19,860.63, 27,409.14 and 12,308.45

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Solution

The fourth proportional to 19,860.63, 27,409.14 and 12,308.45 is: 16,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.63 : 27,409.14 = 12,308.45 : x
  2. Step 2: Convert to fraction form
    19,860.63/27,409.14 = 12,308.45/x
  3. Step 3: Cross multiply
    19,860.63x = 27,409.14 × 12,308.45
  4. Step 4: Simplify right side
    19,860.63x = 337,363,892.19
  5. Step 5: Solve for x
    x = 337,363,892.19/19,860.63
  6. Step 6: Final answer
    x = 16,986.57

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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.