Home / 15,291.40-21,103.14-8,577.46

Finding the Fourth Proportional to 15,291.40, 21,103.14 and 8,577.46

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Solution

The fourth proportional to 15,291.40, 21,103.14 and 8,577.46 is: 11,837.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.40 : 21,103.14 = 8,577.46 : x
  2. Step 2: Convert to fraction form
    15,291.40/21,103.14 = 8,577.46/x
  3. Step 3: Cross multiply
    15,291.40x = 21,103.14 × 8,577.46
  4. Step 4: Simplify right side
    15,291.40x = 181,011,339.22
  5. Step 5: Solve for x
    x = 181,011,339.22/15,291.40
  6. Step 6: Final answer
    x = 11,837.46

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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.