Home / 15,698.03-21,666.74-12,288.26

Finding the Fourth Proportional to 15,698.03, 21,666.74 and 12,288.26

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Solution

The fourth proportional to 15,698.03, 21,666.74 and 12,288.26 is: 16,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.03 : 21,666.74 = 12,288.26 : x
  2. Step 2: Convert to fraction form
    15,698.03/21,666.74 = 12,288.26/x
  3. Step 3: Cross multiply
    15,698.03x = 21,666.74 × 12,288.26
  4. Step 4: Simplify right side
    15,698.03x = 266,246,364.70
  5. Step 5: Solve for x
    x = 266,246,364.70/15,698.03
  6. Step 6: Final answer
    x = 16,960.50

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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.