Home / 15,709.82-21,689.10-10,927.98

Finding the Fourth Proportional to 15,709.82, 21,689.10 and 10,927.98

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Solution

The fourth proportional to 15,709.82, 21,689.10 and 10,927.98 is: 15,087.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,709.82 : 21,689.10 = 10,927.98 : x
  2. Step 2: Convert to fraction form
    15,709.82/21,689.10 = 10,927.98/x
  3. Step 3: Cross multiply
    15,709.82x = 21,689.10 × 10,927.98
  4. Step 4: Simplify right side
    15,709.82x = 237,018,051.02
  5. Step 5: Solve for x
    x = 237,018,051.02/15,709.82
  6. Step 6: Final answer
    x = 15,087.26

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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.