Home / 12,298.15-16,970.47-6,991.84

Finding the Fourth Proportional to 12,298.15, 16,970.47 and 6,991.84

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Solution

The fourth proportional to 12,298.15, 16,970.47 and 6,991.84 is: 9,648.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298.15 : 16,970.47 = 6,991.84 : x
  2. Step 2: Convert to fraction form
    12,298.15/16,970.47 = 6,991.84/x
  3. Step 3: Cross multiply
    12,298.15x = 16,970.47 × 6,991.84
  4. Step 4: Simplify right side
    12,298.15x = 118,654,810.96
  5. Step 5: Solve for x
    x = 118,654,810.96/12,298.15
  6. Step 6: Final answer
    x = 9,648.18

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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.