Home / 8,390.79-11,576.52-4,851.50

Finding the Fourth Proportional to 8,390.79, 11,576.52 and 4,851.50

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Solution

The fourth proportional to 8,390.79, 11,576.52 and 4,851.50 is: 6,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.79 : 11,576.52 = 4,851.50 : x
  2. Step 2: Convert to fraction form
    8,390.79/11,576.52 = 4,851.50/x
  3. Step 3: Cross multiply
    8,390.79x = 11,576.52 × 4,851.50
  4. Step 4: Simplify right side
    8,390.79x = 56,163,428.90
  5. Step 5: Solve for x
    x = 56,163,428.90/8,390.79
  6. Step 6: Final answer
    x = 6,693.46

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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.