Home / 10,347.88-15,515.14-4,428.63

Finding the Fourth Proportional to 10,347.88, 15,515.14 and 4,428.63

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Solution

The fourth proportional to 10,347.88, 15,515.14 and 4,428.63 is: 6,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.88 : 15,515.14 = 4,428.63 : x
  2. Step 2: Convert to fraction form
    10,347.88/15,515.14 = 4,428.63/x
  3. Step 3: Cross multiply
    10,347.88x = 15,515.14 × 4,428.63
  4. Step 4: Simplify right side
    10,347.88x = 68,710,814.46
  5. Step 5: Solve for x
    x = 68,710,814.46/10,347.88
  6. Step 6: Final answer
    x = 6,640.09

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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.