Home / 15,863.58-21,887.36-9,487.57

Finding the Fourth Proportional to 15,863.58, 21,887.36 and 9,487.57

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Solution

The fourth proportional to 15,863.58, 21,887.36 and 9,487.57 is: 13,090.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.58 : 21,887.36 = 9,487.57 : x
  2. Step 2: Convert to fraction form
    15,863.58/21,887.36 = 9,487.57/x
  3. Step 3: Cross multiply
    15,863.58x = 21,887.36 × 9,487.57
  4. Step 4: Simplify right side
    15,863.58x = 207,657,860.12
  5. Step 5: Solve for x
    x = 207,657,860.12/15,863.58
  6. Step 6: Final answer
    x = 13,090.23

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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.