Home / 10,515.45-14,509.51-6,265.99

Finding the Fourth Proportional to 10,515.45, 14,509.51 and 6,265.99

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Solution

The fourth proportional to 10,515.45, 14,509.51 and 6,265.99 is: 8,645.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.45 : 14,509.51 = 6,265.99 : x
  2. Step 2: Convert to fraction form
    10,515.45/14,509.51 = 6,265.99/x
  3. Step 3: Cross multiply
    10,515.45x = 14,509.51 × 6,265.99
  4. Step 4: Simplify right side
    10,515.45x = 90,916,444.56
  5. Step 5: Solve for x
    x = 90,916,444.56/10,515.45
  6. Step 6: Final answer
    x = 8,645.99

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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.