Home / 15,239.07-21,034.14-8,866.89

Finding the Fourth Proportional to 15,239.07, 21,034.14 and 8,866.89

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Solution

The fourth proportional to 15,239.07, 21,034.14 and 8,866.89 is: 12,238.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.07 : 21,034.14 = 8,866.89 : x
  2. Step 2: Convert to fraction form
    15,239.07/21,034.14 = 8,866.89/x
  3. Step 3: Cross multiply
    15,239.07x = 21,034.14 × 8,866.89
  4. Step 4: Simplify right side
    15,239.07x = 186,507,256.12
  5. Step 5: Solve for x
    x = 186,507,256.12/15,239.07
  6. Step 6: Final answer
    x = 12,238.76

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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.