Home / 19,681.74-27,153.09-12,970.62

Finding the Fourth Proportional to 19,681.74, 27,153.09 and 12,970.62

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Solution

The fourth proportional to 19,681.74, 27,153.09 and 12,970.62 is: 17,894.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.74 : 27,153.09 = 12,970.62 : x
  2. Step 2: Convert to fraction form
    19,681.74/27,153.09 = 12,970.62/x
  3. Step 3: Cross multiply
    19,681.74x = 27,153.09 × 12,970.62
  4. Step 4: Simplify right side
    19,681.74x = 352,192,412.22
  5. Step 5: Solve for x
    x = 352,192,412.22/19,681.74
  6. Step 6: Final answer
    x = 17,894.37

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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.