Home / 13,325.80-19,988.70-4,560.78

Finding the Fourth Proportional to 13,325.80, 19,988.70 and 4,560.78

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Solution

The fourth proportional to 13,325.80, 19,988.70 and 4,560.78 is: 6,841.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.80 : 19,988.70 = 4,560.78 : x
  2. Step 2: Convert to fraction form
    13,325.80/19,988.70 = 4,560.78/x
  3. Step 3: Cross multiply
    13,325.80x = 19,988.70 × 4,560.78
  4. Step 4: Simplify right side
    13,325.80x = 91,164,063.19
  5. Step 5: Solve for x
    x = 91,164,063.19/13,325.80
  6. Step 6: Final answer
    x = 6,841.17

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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.