Home / 14,428.53-19,905.75-9,715.95

Finding the Fourth Proportional to 14,428.53, 19,905.75 and 9,715.95

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Solution

The fourth proportional to 14,428.53, 19,905.75 and 9,715.95 is: 13,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.53 : 19,905.75 = 9,715.95 : x
  2. Step 2: Convert to fraction form
    14,428.53/19,905.75 = 9,715.95/x
  3. Step 3: Cross multiply
    14,428.53x = 19,905.75 × 9,715.95
  4. Step 4: Simplify right side
    14,428.53x = 193,403,271.71
  5. Step 5: Solve for x
    x = 193,403,271.71/14,428.53
  6. Step 6: Final answer
    x = 13,404.23

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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.