Home / 15,357.02-21,206.68-11,573.71

Finding the Fourth Proportional to 15,357.02, 21,206.68 and 11,573.71

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Solution

The fourth proportional to 15,357.02, 21,206.68 and 11,573.71 is: 15,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,357.02 : 21,206.68 = 11,573.71 : x
  2. Step 2: Convert to fraction form
    15,357.02/21,206.68 = 11,573.71/x
  3. Step 3: Cross multiply
    15,357.02x = 21,206.68 × 11,573.71
  4. Step 4: Simplify right side
    15,357.02x = 245,439,882.43
  5. Step 5: Solve for x
    x = 245,439,882.43/15,357.02
  6. Step 6: Final answer
    x = 15,982.26

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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.