Home / 19,398.61-29,108.85-9,538.89

Finding the Fourth Proportional to 19,398.61, 29,108.85 and 9,538.89

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Solution

The fourth proportional to 19,398.61, 29,108.85 and 9,538.89 is: 14,313.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398.61 : 29,108.85 = 9,538.89 : x
  2. Step 2: Convert to fraction form
    19,398.61/29,108.85 = 9,538.89/x
  3. Step 3: Cross multiply
    19,398.61x = 29,108.85 × 9,538.89
  4. Step 4: Simplify right side
    19,398.61x = 277,666,118.18
  5. Step 5: Solve for x
    x = 277,666,118.18/19,398.61
  6. Step 6: Final answer
    x = 14,313.71

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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.