Home / 15,573.56-21,490.38-8,859.33

Finding the Fourth Proportional to 15,573.56, 21,490.38 and 8,859.33

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Solution

The fourth proportional to 15,573.56, 21,490.38 and 8,859.33 is: 12,225.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,573.56 : 21,490.38 = 8,859.33 : x
  2. Step 2: Convert to fraction form
    15,573.56/21,490.38 = 8,859.33/x
  3. Step 3: Cross multiply
    15,573.56x = 21,490.38 × 8,859.33
  4. Step 4: Simplify right side
    15,573.56x = 190,390,368.25
  5. Step 5: Solve for x
    x = 190,390,368.25/15,573.56
  6. Step 6: Final answer
    x = 12,225.23

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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.