Home / 15,554.16-21,465.02-8,480.88

Finding the Fourth Proportional to 15,554.16, 21,465.02 and 8,480.88

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Solution

The fourth proportional to 15,554.16, 21,465.02 and 8,480.88 is: 11,703.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.16 : 21,465.02 = 8,480.88 : x
  2. Step 2: Convert to fraction form
    15,554.16/21,465.02 = 8,480.88/x
  3. Step 3: Cross multiply
    15,554.16x = 21,465.02 × 8,480.88
  4. Step 4: Simplify right side
    15,554.16x = 182,042,258.82
  5. Step 5: Solve for x
    x = 182,042,258.82/15,554.16
  6. Step 6: Final answer
    x = 11,703.77

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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.