Home / 10,145.84-14,001.80-5,669.68

Finding the Fourth Proportional to 10,145.84, 14,001.80 and 5,669.68

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Solution

The fourth proportional to 10,145.84, 14,001.80 and 5,669.68 is: 7,824.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.84 : 14,001.80 = 5,669.68 : x
  2. Step 2: Convert to fraction form
    10,145.84/14,001.80 = 5,669.68/x
  3. Step 3: Cross multiply
    10,145.84x = 14,001.80 × 5,669.68
  4. Step 4: Simplify right side
    10,145.84x = 79,385,725.42
  5. Step 5: Solve for x
    x = 79,385,725.42/10,145.84
  6. Step 6: Final answer
    x = 7,824.46

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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.