Home / 12,752.10-19,140.84-10,439.28

Finding the Fourth Proportional to 12,752.10, 19,140.84 and 10,439.28

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Solution

The fourth proportional to 12,752.10, 19,140.84 and 10,439.28 is: 15,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752.10 : 19,140.84 = 10,439.28 : x
  2. Step 2: Convert to fraction form
    12,752.10/19,140.84 = 10,439.28/x
  3. Step 3: Cross multiply
    12,752.10x = 19,140.84 × 10,439.28
  4. Step 4: Simplify right side
    12,752.10x = 199,816,588.20
  5. Step 5: Solve for x
    x = 199,816,588.20/12,752.10
  6. Step 6: Final answer
    x = 15,669.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.