Home / 12,038.74-16,613.59-6,660.90

Finding the Fourth Proportional to 12,038.74, 16,613.59 and 6,660.90

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Solution

The fourth proportional to 12,038.74, 16,613.59 and 6,660.90 is: 9,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.74 : 16,613.59 = 6,660.90 : x
  2. Step 2: Convert to fraction form
    12,038.74/16,613.59 = 6,660.90/x
  3. Step 3: Cross multiply
    12,038.74x = 16,613.59 × 6,660.90
  4. Step 4: Simplify right side
    12,038.74x = 110,661,461.63
  5. Step 5: Solve for x
    x = 110,661,461.63/12,038.74
  6. Step 6: Final answer
    x = 9,192.11

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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.