Home / 8,880.31-13,307.75-6,521.81

Finding the Fourth Proportional to 8,880.31, 13,307.75 and 6,521.81

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Solution

The fourth proportional to 8,880.31, 13,307.75 and 6,521.81 is: 9,773.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.31 : 13,307.75 = 6,521.81 : x
  2. Step 2: Convert to fraction form
    8,880.31/13,307.75 = 6,521.81/x
  3. Step 3: Cross multiply
    8,880.31x = 13,307.75 × 6,521.81
  4. Step 4: Simplify right side
    8,880.31x = 86,790,642.14
  5. Step 5: Solve for x
    x = 86,790,642.14/8,880.31
  6. Step 6: Final answer
    x = 9,773.38

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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.