Home / 13,488.16-18,613.68-7,823.98

Finding the Fourth Proportional to 13,488.16, 18,613.68 and 7,823.98

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Solution

The fourth proportional to 13,488.16, 18,613.68 and 7,823.98 is: 10,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.16 : 18,613.68 = 7,823.98 : x
  2. Step 2: Convert to fraction form
    13,488.16/18,613.68 = 7,823.98/x
  3. Step 3: Cross multiply
    13,488.16x = 18,613.68 × 7,823.98
  4. Step 4: Simplify right side
    13,488.16x = 145,633,060.05
  5. Step 5: Solve for x
    x = 145,633,060.05/13,488.16
  6. Step 6: Final answer
    x = 10,797.10

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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.