Home / 13,774.03-19,009.89-7,807.63

Finding the Fourth Proportional to 13,774.03, 19,009.89 and 7,807.63

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Solution

The fourth proportional to 13,774.03, 19,009.89 and 7,807.63 is: 10,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.03 : 19,009.89 = 7,807.63 : x
  2. Step 2: Convert to fraction form
    13,774.03/19,009.89 = 7,807.63/x
  3. Step 3: Cross multiply
    13,774.03x = 19,009.89 × 7,807.63
  4. Step 4: Simplify right side
    13,774.03x = 148,422,187.46
  5. Step 5: Solve for x
    x = 148,422,187.46/13,774.03
  6. Step 6: Final answer
    x = 10,775.51

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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.