Home / 19,758.72-29,624.10-9,890.92

Finding the Fourth Proportional to 19,758.72, 29,624.10 and 9,890.92

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Solution

The fourth proportional to 19,758.72, 29,624.10 and 9,890.92 is: 14,829.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.72 : 29,624.10 = 9,890.92 : x
  2. Step 2: Convert to fraction form
    19,758.72/29,624.10 = 9,890.92/x
  3. Step 3: Cross multiply
    19,758.72x = 29,624.10 × 9,890.92
  4. Step 4: Simplify right side
    19,758.72x = 293,009,603.17
  5. Step 5: Solve for x
    x = 293,009,603.17/19,758.72
  6. Step 6: Final answer
    x = 14,829.38

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1.5x scale

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.