Home / 14,122.96-19,488.78-7,835.76

Finding the Fourth Proportional to 14,122.96, 19,488.78 and 7,835.76

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Solution

The fourth proportional to 14,122.96, 19,488.78 and 7,835.76 is: 10,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.96 : 19,488.78 = 7,835.76 : x
  2. Step 2: Convert to fraction form
    14,122.96/19,488.78 = 7,835.76/x
  3. Step 3: Cross multiply
    14,122.96x = 19,488.78 × 7,835.76
  4. Step 4: Simplify right side
    14,122.96x = 152,709,402.77
  5. Step 5: Solve for x
    x = 152,709,402.77/14,122.96
  6. Step 6: Final answer
    x = 10,812.85

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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.