Home / 15,520.54-21,437.58-11,264.80

Finding the Fourth Proportional to 15,520.54, 21,437.58 and 11,264.80

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Solution

The fourth proportional to 15,520.54, 21,437.58 and 11,264.80 is: 15,559.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520.54 : 21,437.58 = 11,264.80 : x
  2. Step 2: Convert to fraction form
    15,520.54/21,437.58 = 11,264.80/x
  3. Step 3: Cross multiply
    15,520.54x = 21,437.58 × 11,264.80
  4. Step 4: Simplify right side
    15,520.54x = 241,490,051.18
  5. Step 5: Solve for x
    x = 241,490,051.18/15,520.54
  6. Step 6: Final answer
    x = 15,559.38

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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.