Home / 14,287.96-21,437.56-4,428

Finding the Fourth Proportional to 14,287.96, 21,437.56 and 4,428

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Solution

The fourth proportional to 14,287.96, 21,437.56 and 4,428 is: 6,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.96 : 21,437.56 = 4,428 : x
  2. Step 2: Convert to fraction form
    14,287.96/21,437.56 = 4,428/x
  3. Step 3: Cross multiply
    14,287.96x = 21,437.56 × 4,428
  4. Step 4: Simplify right side
    14,287.96x = 94,925,515.68
  5. Step 5: Solve for x
    x = 94,925,515.68/14,287.96
  6. Step 6: Final answer
    x = 6,643.74

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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.