Home / 10,875.40-16,302.30-5,021.80

Finding the Fourth Proportional to 10,875.40, 16,302.30 and 5,021.80

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Solution

The fourth proportional to 10,875.40, 16,302.30 and 5,021.80 is: 7,527.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,875.40 : 16,302.30 = 5,021.80 : x
  2. Step 2: Convert to fraction form
    10,875.40/16,302.30 = 5,021.80/x
  3. Step 3: Cross multiply
    10,875.40x = 16,302.30 × 5,021.80
  4. Step 4: Simplify right side
    10,875.40x = 81,866,890.14
  5. Step 5: Solve for x
    x = 81,866,890.14/10,875.40
  6. Step 6: Final answer
    x = 7,527.71

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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.