Home / 14,521.16-21,780.52-4,657.76

Finding the Fourth Proportional to 14,521.16, 21,780.52 and 4,657.76

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Solution

The fourth proportional to 14,521.16, 21,780.52 and 4,657.76 is: 6,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.16 : 21,780.52 = 4,657.76 : x
  2. Step 2: Convert to fraction form
    14,521.16/21,780.52 = 4,657.76/x
  3. Step 3: Cross multiply
    14,521.16x = 21,780.52 × 4,657.76
  4. Step 4: Simplify right side
    14,521.16x = 101,448,434.84
  5. Step 5: Solve for x
    x = 101,448,434.84/14,521.16
  6. Step 6: Final answer
    x = 6,986.25

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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.