Home / 12,312.09-16,989.35-7,006.41

Finding the Fourth Proportional to 12,312.09, 16,989.35 and 7,006.41

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Solution

The fourth proportional to 12,312.09, 16,989.35 and 7,006.41 is: 9,668.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.09 : 16,989.35 = 7,006.41 : x
  2. Step 2: Convert to fraction form
    12,312.09/16,989.35 = 7,006.41/x
  3. Step 3: Cross multiply
    12,312.09x = 16,989.35 × 7,006.41
  4. Step 4: Simplify right side
    12,312.09x = 119,034,316.70
  5. Step 5: Solve for x
    x = 119,034,316.70/12,312.09
  6. Step 6: Final answer
    x = 9,668.08

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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.