Home / 9,521.40-14,284.50-7,689.16

Finding the Fourth Proportional to 9,521.40, 14,284.50 and 7,689.16

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Solution

The fourth proportional to 9,521.40, 14,284.50 and 7,689.16 is: 11,535.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.40 : 14,284.50 = 7,689.16 : x
  2. Step 2: Convert to fraction form
    9,521.40/14,284.50 = 7,689.16/x
  3. Step 3: Cross multiply
    9,521.40x = 14,284.50 × 7,689.16
  4. Step 4: Simplify right side
    9,521.40x = 109,835,806.02
  5. Step 5: Solve for x
    x = 109,835,806.02/9,521.40
  6. Step 6: Final answer
    x = 11,535.68

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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.