Home / 16,071.68-22,181.28-9,782.88

Finding the Fourth Proportional to 16,071.68, 22,181.28 and 9,782.88

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Solution

The fourth proportional to 16,071.68, 22,181.28 and 9,782.88 is: 13,501.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,071.68 : 22,181.28 = 9,782.88 : x
  2. Step 2: Convert to fraction form
    16,071.68/22,181.28 = 9,782.88/x
  3. Step 3: Cross multiply
    16,071.68x = 22,181.28 × 9,782.88
  4. Step 4: Simplify right side
    16,071.68x = 216,996,800.49
  5. Step 5: Solve for x
    x = 216,996,800.49/16,071.68
  6. Step 6: Final answer
    x = 13,501.81

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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.