Home / 19,615.81-27,069.84-10,663.28

Finding the Fourth Proportional to 19,615.81, 27,069.84 and 10,663.28

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Solution

The fourth proportional to 19,615.81, 27,069.84 and 10,663.28 is: 14,715.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.81 : 27,069.84 = 10,663.28 : x
  2. Step 2: Convert to fraction form
    19,615.81/27,069.84 = 10,663.28/x
  3. Step 3: Cross multiply
    19,615.81x = 27,069.84 × 10,663.28
  4. Step 4: Simplify right side
    19,615.81x = 288,653,283.48
  5. Step 5: Solve for x
    x = 288,653,283.48/19,615.81
  6. Step 6: Final answer
    x = 14,715.34

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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.