Home / 9,312.46-12,851.15-5,486.32

Finding the Fourth Proportional to 9,312.46, 12,851.15 and 5,486.32

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Solution

The fourth proportional to 9,312.46, 12,851.15 and 5,486.32 is: 7,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.46 : 12,851.15 = 5,486.32 : x
  2. Step 2: Convert to fraction form
    9,312.46/12,851.15 = 5,486.32/x
  3. Step 3: Cross multiply
    9,312.46x = 12,851.15 × 5,486.32
  4. Step 4: Simplify right side
    9,312.46x = 70,505,521.27
  5. Step 5: Solve for x
    x = 70,505,521.27/9,312.46
  6. Step 6: Final answer
    x = 7,571.10

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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.