Home / 15,366.40-21,206.06-8,651.50

Finding the Fourth Proportional to 15,366.40, 21,206.06 and 8,651.50

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Solution

The fourth proportional to 15,366.40, 21,206.06 and 8,651.50 is: 11,939.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,366.40 : 21,206.06 = 8,651.50 : x
  2. Step 2: Convert to fraction form
    15,366.40/21,206.06 = 8,651.50/x
  3. Step 3: Cross multiply
    15,366.40x = 21,206.06 × 8,651.50
  4. Step 4: Simplify right side
    15,366.40x = 183,464,228.09
  5. Step 5: Solve for x
    x = 183,464,228.09/15,366.40
  6. Step 6: Final answer
    x = 11,939.31

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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.