Home / 10,638.24-14,685.92-6,661.52

Finding the Fourth Proportional to 10,638.24, 14,685.92 and 6,661.52

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Solution

The fourth proportional to 10,638.24, 14,685.92 and 6,661.52 is: 9,196.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.24 : 14,685.92 = 6,661.52 : x
  2. Step 2: Convert to fraction form
    10,638.24/14,685.92 = 6,661.52/x
  3. Step 3: Cross multiply
    10,638.24x = 14,685.92 × 6,661.52
  4. Step 4: Simplify right side
    10,638.24x = 97,830,549.80
  5. Step 5: Solve for x
    x = 97,830,549.80/10,638.24
  6. Step 6: Final answer
    x = 9,196.12

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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.