Home / 15,621.41-21,557.54-8,547.83

Finding the Fourth Proportional to 15,621.41, 21,557.54 and 8,547.83

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Solution

The fourth proportional to 15,621.41, 21,557.54 and 8,547.83 is: 11,796.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.41 : 21,557.54 = 8,547.83 : x
  2. Step 2: Convert to fraction form
    15,621.41/21,557.54 = 8,547.83/x
  3. Step 3: Cross multiply
    15,621.41x = 21,557.54 × 8,547.83
  4. Step 4: Simplify right side
    15,621.41x = 184,270,187.14
  5. Step 5: Solve for x
    x = 184,270,187.14/15,621.41
  6. Step 6: Final answer
    x = 11,796.01

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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.