Home / 13,772.65-19,006.40-7,485.02

Finding the Fourth Proportional to 13,772.65, 19,006.40 and 7,485.02

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Solution

The fourth proportional to 13,772.65, 19,006.40 and 7,485.02 is: 10,329.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.65 : 19,006.40 = 7,485.02 : x
  2. Step 2: Convert to fraction form
    13,772.65/19,006.40 = 7,485.02/x
  3. Step 3: Cross multiply
    13,772.65x = 19,006.40 × 7,485.02
  4. Step 4: Simplify right side
    13,772.65x = 142,263,331.64
  5. Step 5: Solve for x
    x = 142,263,331.64/13,772.65
  6. Step 6: Final answer
    x = 10,329.41

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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.