Home / 13,871.08-19,141.11-7,901.65

Finding the Fourth Proportional to 13,871.08, 19,141.11 and 7,901.65

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Solution

The fourth proportional to 13,871.08, 19,141.11 and 7,901.65 is: 10,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.08 : 19,141.11 = 7,901.65 : x
  2. Step 2: Convert to fraction form
    13,871.08/19,141.11 = 7,901.65/x
  3. Step 3: Cross multiply
    13,871.08x = 19,141.11 × 7,901.65
  4. Step 4: Simplify right side
    13,871.08x = 151,246,312.32
  5. Step 5: Solve for x
    x = 151,246,312.32/13,871.08
  6. Step 6: Final answer
    x = 10,903.72

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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.