Home / 15,886.48-21,914.23-9,907.77

Finding the Fourth Proportional to 15,886.48, 21,914.23 and 9,907.77

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Solution

The fourth proportional to 15,886.48, 21,914.23 and 9,907.77 is: 13,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.48 : 21,914.23 = 9,907.77 : x
  2. Step 2: Convert to fraction form
    15,886.48/21,914.23 = 9,907.77/x
  3. Step 3: Cross multiply
    15,886.48x = 21,914.23 × 9,907.77
  4. Step 4: Simplify right side
    15,886.48x = 217,121,145.08
  5. Step 5: Solve for x
    x = 217,121,145.08/15,886.48
  6. Step 6: Final answer
    x = 13,667.04

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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.