Home / 7,312.15-10,969.13-2,380.47

Finding the Fourth Proportional to 7,312.15, 10,969.13 and 2,380.47

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Solution

The fourth proportional to 7,312.15, 10,969.13 and 2,380.47 is: 3,571.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.15 : 10,969.13 = 2,380.47 : x
  2. Step 2: Convert to fraction form
    7,312.15/10,969.13 = 2,380.47/x
  3. Step 3: Cross multiply
    7,312.15x = 10,969.13 × 2,380.47
  4. Step 4: Simplify right side
    7,312.15x = 26,111,684.89
  5. Step 5: Solve for x
    x = 26,111,684.89/7,312.15
  6. Step 6: Final answer
    x = 3,571.00

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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.