Home / 10,643.99-15,966.89-4,402.80

Finding the Fourth Proportional to 10,643.99, 15,966.89 and 4,402.80

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Solution

The fourth proportional to 10,643.99, 15,966.89 and 4,402.80 is: 6,604.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.99 : 15,966.89 = 4,402.80 : x
  2. Step 2: Convert to fraction form
    10,643.99/15,966.89 = 4,402.80/x
  3. Step 3: Cross multiply
    10,643.99x = 15,966.89 × 4,402.80
  4. Step 4: Simplify right side
    10,643.99x = 70,299,001.28
  5. Step 5: Solve for x
    x = 70,299,001.28/10,643.99
  6. Step 6: Final answer
    x = 6,604.58

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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.