Home / 15,570.40-21,486.88-8,496.80

Finding the Fourth Proportional to 15,570.40, 21,486.88 and 8,496.80

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Solution

The fourth proportional to 15,570.40, 21,486.88 and 8,496.80 is: 11,725.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.40 : 21,486.88 = 8,496.80 : x
  2. Step 2: Convert to fraction form
    15,570.40/21,486.88 = 8,496.80/x
  3. Step 3: Cross multiply
    15,570.40x = 21,486.88 × 8,496.80
  4. Step 4: Simplify right side
    15,570.40x = 182,569,721.98
  5. Step 5: Solve for x
    x = 182,569,721.98/15,570.40
  6. Step 6: Final answer
    x = 11,725.44

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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.