Home / 10,813.04-16,221.72-3,888.08

Finding the Fourth Proportional to 10,813.04, 16,221.72 and 3,888.08

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Solution

The fourth proportional to 10,813.04, 16,221.72 and 3,888.08 is: 5,832.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.04 : 16,221.72 = 3,888.08 : x
  2. Step 2: Convert to fraction form
    10,813.04/16,221.72 = 3,888.08/x
  3. Step 3: Cross multiply
    10,813.04x = 16,221.72 × 3,888.08
  4. Step 4: Simplify right side
    10,813.04x = 63,071,345.10
  5. Step 5: Solve for x
    x = 63,071,345.10/10,813.04
  6. Step 6: Final answer
    x = 5,832.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.