Home / 10,638.32-14,680.67-6,661.63

Finding the Fourth Proportional to 10,638.32, 14,680.67 and 6,661.63

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Solution

The fourth proportional to 10,638.32, 14,680.67 and 6,661.63 is: 9,192.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.32 : 14,680.67 = 6,661.63 : x
  2. Step 2: Convert to fraction form
    10,638.32/14,680.67 = 6,661.63/x
  3. Step 3: Cross multiply
    10,638.32x = 14,680.67 × 6,661.63
  4. Step 4: Simplify right side
    10,638.32x = 97,797,191.69
  5. Step 5: Solve for x
    x = 97,797,191.69/10,638.32
  6. Step 6: Final answer
    x = 9,192.92

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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.