Home / 15,288.86-21,097.38-8,573.58

Finding the Fourth Proportional to 15,288.86, 21,097.38 and 8,573.58

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Solution

The fourth proportional to 15,288.86, 21,097.38 and 8,573.58 is: 11,830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.86 : 21,097.38 = 8,573.58 : x
  2. Step 2: Convert to fraction form
    15,288.86/21,097.38 = 8,573.58/x
  3. Step 3: Cross multiply
    15,288.86x = 21,097.38 × 8,573.58
  4. Step 4: Simplify right side
    15,288.86x = 180,880,075.22
  5. Step 5: Solve for x
    x = 180,880,075.22/15,288.86
  6. Step 6: Final answer
    x = 11,830.84

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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.