Home / 12,545.03-18,810.86-4,222.28

Finding the Fourth Proportional to 12,545.03, 18,810.86 and 4,222.28

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Solution

The fourth proportional to 12,545.03, 18,810.86 and 4,222.28 is: 6,331.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.03 : 18,810.86 = 4,222.28 : x
  2. Step 2: Convert to fraction form
    12,545.03/18,810.86 = 4,222.28/x
  3. Step 3: Cross multiply
    12,545.03x = 18,810.86 × 4,222.28
  4. Step 4: Simplify right side
    12,545.03x = 79,424,602.80
  5. Step 5: Solve for x
    x = 79,424,602.80/12,545.03
  6. Step 6: Final answer
    x = 6,331.16

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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.