Home / 15,114.29-20,846.36-10,639.31

Finding the Fourth Proportional to 15,114.29, 20,846.36 and 10,639.31

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Solution

The fourth proportional to 15,114.29, 20,846.36 and 10,639.31 is: 14,674.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.29 : 20,846.36 = 10,639.31 : x
  2. Step 2: Convert to fraction form
    15,114.29/20,846.36 = 10,639.31/x
  3. Step 3: Cross multiply
    15,114.29x = 20,846.36 × 10,639.31
  4. Step 4: Simplify right side
    15,114.29x = 221,790,808.78
  5. Step 5: Solve for x
    x = 221,790,808.78/15,114.29
  6. Step 6: Final answer
    x = 14,674.25

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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.