Home / 15,140.12-20,875.23-9,833

Finding the Fourth Proportional to 15,140.12, 20,875.23 and 9,833

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Solution

The fourth proportional to 15,140.12, 20,875.23 and 9,833 is: 13,557.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.12 : 20,875.23 = 9,833 : x
  2. Step 2: Convert to fraction form
    15,140.12/20,875.23 = 9,833/x
  3. Step 3: Cross multiply
    15,140.12x = 20,875.23 × 9,833
  4. Step 4: Simplify right side
    15,140.12x = 205,266,136.59
  5. Step 5: Solve for x
    x = 205,266,136.59/15,140.12
  6. Step 6: Final answer
    x = 13,557.76

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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.