Home / 16,856.81-23,253.58-12,871.00

Finding the Fourth Proportional to 16,856.81, 23,253.58 and 12,871.00

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Solution

The fourth proportional to 16,856.81, 23,253.58 and 12,871.00 is: 17,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,856.81 : 23,253.58 = 12,871.00 : x
  2. Step 2: Convert to fraction form
    16,856.81/23,253.58 = 12,871.00/x
  3. Step 3: Cross multiply
    16,856.81x = 23,253.58 × 12,871.00
  4. Step 4: Simplify right side
    16,856.81x = 299,296,873.34
  5. Step 5: Solve for x
    x = 299,296,873.34/16,856.81
  6. Step 6: Final answer
    x = 17,755.25

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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.