Home / 15,260.58-21,061.89-8,889.30

Finding the Fourth Proportional to 15,260.58, 21,061.89 and 8,889.30

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Solution

The fourth proportional to 15,260.58, 21,061.89 and 8,889.30 is: 12,268.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,260.58 : 21,061.89 = 8,889.30 : x
  2. Step 2: Convert to fraction form
    15,260.58/21,061.89 = 8,889.30/x
  3. Step 3: Cross multiply
    15,260.58x = 21,061.89 × 8,889.30
  4. Step 4: Simplify right side
    15,260.58x = 187,225,458.78
  5. Step 5: Solve for x
    x = 187,225,458.78/15,260.58
  6. Step 6: Final answer
    x = 12,268.57

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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.