Home / 19,683.20-27,162.52-10,731.08

Finding the Fourth Proportional to 19,683.20, 27,162.52 and 10,731.08

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Solution

The fourth proportional to 19,683.20, 27,162.52 and 10,731.08 is: 14,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,683.20 : 27,162.52 = 10,731.08 : x
  2. Step 2: Convert to fraction form
    19,683.20/27,162.52 = 10,731.08/x
  3. Step 3: Cross multiply
    19,683.20x = 27,162.52 × 10,731.08
  4. Step 4: Simplify right side
    19,683.20x = 291,483,175.12
  5. Step 5: Solve for x
    x = 291,483,175.12/19,683.20
  6. Step 6: Final answer
    x = 14,808.73

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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.