Home / 17,911.17-26,871.31-10,521.88

Finding the Fourth Proportional to 17,911.17, 26,871.31 and 10,521.88

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Solution

The fourth proportional to 17,911.17, 26,871.31 and 10,521.88 is: 15,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.17 : 26,871.31 = 10,521.88 : x
  2. Step 2: Convert to fraction form
    17,911.17/26,871.31 = 10,521.88/x
  3. Step 3: Cross multiply
    17,911.17x = 26,871.31 × 10,521.88
  4. Step 4: Simplify right side
    17,911.17x = 282,736,699.26
  5. Step 5: Solve for x
    x = 282,736,699.26/17,911.17
  6. Step 6: Final answer
    x = 15,785.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.