Home / 19,786.16-29,658.74-12,373.60

Finding the Fourth Proportional to 19,786.16, 29,658.74 and 12,373.60

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Solution

The fourth proportional to 19,786.16, 29,658.74 and 12,373.60 is: 18,547.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.16 : 29,658.74 = 12,373.60 : x
  2. Step 2: Convert to fraction form
    19,786.16/29,658.74 = 12,373.60/x
  3. Step 3: Cross multiply
    19,786.16x = 29,658.74 × 12,373.60
  4. Step 4: Simplify right side
    19,786.16x = 366,985,385.26
  5. Step 5: Solve for x
    x = 366,985,385.26/19,786.16
  6. Step 6: Final answer
    x = 18,547.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.