Home / 19,673.12-27,151.80-12,957.68

Finding the Fourth Proportional to 19,673.12, 27,151.80 and 12,957.68

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Solution

The fourth proportional to 19,673.12, 27,151.80 and 12,957.68 is: 17,883.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,673.12 : 27,151.80 = 12,957.68 : x
  2. Step 2: Convert to fraction form
    19,673.12/27,151.80 = 12,957.68/x
  3. Step 3: Cross multiply
    19,673.12x = 27,151.80 × 12,957.68
  4. Step 4: Simplify right side
    19,673.12x = 351,824,335.82
  5. Step 5: Solve for x
    x = 351,824,335.82/19,673.12
  6. Step 6: Final answer
    x = 17,883.50

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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.