Home / 14,123.12-19,489.56-7,835.60

Finding the Fourth Proportional to 14,123.12, 19,489.56 and 7,835.60

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Solution

The fourth proportional to 14,123.12, 19,489.56 and 7,835.60 is: 10,812.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.12 : 19,489.56 = 7,835.60 : x
  2. Step 2: Convert to fraction form
    14,123.12/19,489.56 = 7,835.60/x
  3. Step 3: Cross multiply
    14,123.12x = 19,489.56 × 7,835.60
  4. Step 4: Simplify right side
    14,123.12x = 152,712,396.34
  5. Step 5: Solve for x
    x = 152,712,396.34/14,123.12
  6. Step 6: Final answer
    x = 10,812.94

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1.5x scale

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.