Home / 19,666.30-29,518.65-9,816.70

Finding the Fourth Proportional to 19,666.30, 29,518.65 and 9,816.70

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Solution

The fourth proportional to 19,666.30, 29,518.65 and 9,816.70 is: 14,734.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.30 : 29,518.65 = 9,816.70 : x
  2. Step 2: Convert to fraction form
    19,666.30/29,518.65 = 9,816.70/x
  3. Step 3: Cross multiply
    19,666.30x = 29,518.65 × 9,816.70
  4. Step 4: Simplify right side
    19,666.30x = 289,775,731.46
  5. Step 5: Solve for x
    x = 289,775,731.46/19,666.30
  6. Step 6: Final answer
    x = 14,734.63

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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.