Home / 14,220.16-19,630.10-9,186.82

Finding the Fourth Proportional to 14,220.16, 19,630.10 and 9,186.82

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Solution

The fourth proportional to 14,220.16, 19,630.10 and 9,186.82 is: 12,681.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.16 : 19,630.10 = 9,186.82 : x
  2. Step 2: Convert to fraction form
    14,220.16/19,630.10 = 9,186.82/x
  3. Step 3: Cross multiply
    14,220.16x = 19,630.10 × 9,186.82
  4. Step 4: Simplify right side
    14,220.16x = 180,338,117.50
  5. Step 5: Solve for x
    x = 180,338,117.50/14,220.16
  6. Step 6: Final answer
    x = 12,681.86

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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.