Home / 14,251.23-19,666.35-7,878.33

Finding the Fourth Proportional to 14,251.23, 19,666.35 and 7,878.33

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Solution

The fourth proportional to 14,251.23, 19,666.35 and 7,878.33 is: 10,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.23 : 19,666.35 = 7,878.33 : x
  2. Step 2: Convert to fraction form
    14,251.23/19,666.35 = 7,878.33/x
  3. Step 3: Cross multiply
    14,251.23x = 19,666.35 × 7,878.33
  4. Step 4: Simplify right side
    14,251.23x = 154,937,995.20
  5. Step 5: Solve for x
    x = 154,937,995.20/14,251.23
  6. Step 6: Final answer
    x = 10,871.90

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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.