Home / 15,410.40-21,259.44-10,433.76

Finding the Fourth Proportional to 15,410.40, 21,259.44 and 10,433.76

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Solution

The fourth proportional to 15,410.40, 21,259.44 and 10,433.76 is: 14,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,410.40 : 21,259.44 = 10,433.76 : x
  2. Step 2: Convert to fraction form
    15,410.40/21,259.44 = 10,433.76/x
  3. Step 3: Cross multiply
    15,410.40x = 21,259.44 × 10,433.76
  4. Step 4: Simplify right side
    15,410.40x = 221,815,894.69
  5. Step 5: Solve for x
    x = 221,815,894.69/15,410.40
  6. Step 6: Final answer
    x = 14,393.91

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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.