Home / 13,864.72-19,132.40-7,577.12

Finding the Fourth Proportional to 13,864.72, 19,132.40 and 7,577.12

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Solution

The fourth proportional to 13,864.72, 19,132.40 and 7,577.12 is: 10,455.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.72 : 19,132.40 = 7,577.12 : x
  2. Step 2: Convert to fraction form
    13,864.72/19,132.40 = 7,577.12/x
  3. Step 3: Cross multiply
    13,864.72x = 19,132.40 × 7,577.12
  4. Step 4: Simplify right side
    13,864.72x = 144,968,490.69
  5. Step 5: Solve for x
    x = 144,968,490.69/13,864.72
  6. Step 6: Final answer
    x = 10,455.93

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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.