Home / 12,898.29-17,800.36-9,705.84

Finding the Fourth Proportional to 12,898.29, 17,800.36 and 9,705.84

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Solution

The fourth proportional to 12,898.29, 17,800.36 and 9,705.84 is: 13,394.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.29 : 17,800.36 = 9,705.84 : x
  2. Step 2: Convert to fraction form
    12,898.29/17,800.36 = 9,705.84/x
  3. Step 3: Cross multiply
    12,898.29x = 17,800.36 × 9,705.84
  4. Step 4: Simplify right side
    12,898.29x = 172,767,380.12
  5. Step 5: Solve for x
    x = 172,767,380.12/12,898.29
  6. Step 6: Final answer
    x = 13,394.60

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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.