Home / 13,127.95-19,686.12-4,805.80

Finding the Fourth Proportional to 13,127.95, 19,686.12 and 4,805.80

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Solution

The fourth proportional to 13,127.95, 19,686.12 and 4,805.80 is: 7,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.95 : 19,686.12 = 4,805.80 : x
  2. Step 2: Convert to fraction form
    13,127.95/19,686.12 = 4,805.80/x
  3. Step 3: Cross multiply
    13,127.95x = 19,686.12 × 4,805.80
  4. Step 4: Simplify right side
    13,127.95x = 94,607,555.50
  5. Step 5: Solve for x
    x = 94,607,555.50/13,127.95
  6. Step 6: Final answer
    x = 7,206.57

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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.