Home / 13,965.31-19,271.64-7,677.64

Finding the Fourth Proportional to 13,965.31, 19,271.64 and 7,677.64

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Solution

The fourth proportional to 13,965.31, 19,271.64 and 7,677.64 is: 10,594.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.31 : 19,271.64 = 7,677.64 : x
  2. Step 2: Convert to fraction form
    13,965.31/19,271.64 = 7,677.64/x
  3. Step 3: Cross multiply
    13,965.31x = 19,271.64 × 7,677.64
  4. Step 4: Simplify right side
    13,965.31x = 147,960,714.13
  5. Step 5: Solve for x
    x = 147,960,714.13/13,965.31
  6. Step 6: Final answer
    x = 10,594.88

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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.