Home / 14,386.76-19,859.88-9,673.78

Finding the Fourth Proportional to 14,386.76, 19,859.88 and 9,673.78

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Solution

The fourth proportional to 14,386.76, 19,859.88 and 9,673.78 is: 13,353.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.76 : 19,859.88 = 9,673.78 : x
  2. Step 2: Convert to fraction form
    14,386.76/19,859.88 = 9,673.78/x
  3. Step 3: Cross multiply
    14,386.76x = 19,859.88 × 9,673.78
  4. Step 4: Simplify right side
    14,386.76x = 192,120,109.95
  5. Step 5: Solve for x
    x = 192,120,109.95/14,386.76
  6. Step 6: Final answer
    x = 13,353.95

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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.