Home / 15,447.07-21,316.80-8,641.01

Finding the Fourth Proportional to 15,447.07, 21,316.80 and 8,641.01

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Solution

The fourth proportional to 15,447.07, 21,316.80 and 8,641.01 is: 11,924.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.07 : 21,316.80 = 8,641.01 : x
  2. Step 2: Convert to fraction form
    15,447.07/21,316.80 = 8,641.01/x
  3. Step 3: Cross multiply
    15,447.07x = 21,316.80 × 8,641.01
  4. Step 4: Simplify right side
    15,447.07x = 184,198,681.97
  5. Step 5: Solve for x
    x = 184,198,681.97/15,447.07
  6. Step 6: Final answer
    x = 11,924.51

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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.