Home / 14,890.61-20,545.20-8,918.03

Finding the Fourth Proportional to 14,890.61, 20,545.20 and 8,918.03

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Solution

The fourth proportional to 14,890.61, 20,545.20 and 8,918.03 is: 12,304.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,890.61 : 20,545.20 = 8,918.03 : x
  2. Step 2: Convert to fraction form
    14,890.61/20,545.20 = 8,918.03/x
  3. Step 3: Cross multiply
    14,890.61x = 20,545.20 × 8,918.03
  4. Step 4: Simplify right side
    14,890.61x = 183,222,607.23
  5. Step 5: Solve for x
    x = 183,222,607.23/14,890.61
  6. Step 6: Final answer
    x = 12,304.58

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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.