Home / 15,348.52-21,166.02-11,804.20

Finding the Fourth Proportional to 15,348.52, 21,166.02 and 11,804.20

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Solution

The fourth proportional to 15,348.52, 21,166.02 and 11,804.20 is: 16,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348.52 : 21,166.02 = 11,804.20 : x
  2. Step 2: Convert to fraction form
    15,348.52/21,166.02 = 11,804.20/x
  3. Step 3: Cross multiply
    15,348.52x = 21,166.02 × 11,804.20
  4. Step 4: Simplify right side
    15,348.52x = 249,847,933.28
  5. Step 5: Solve for x
    x = 249,847,933.28/15,348.52
  6. Step 6: Final answer
    x = 16,278.31

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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.