Home / 19,799.18-29,699.17-7,312.77

Finding the Fourth Proportional to 19,799.18, 29,699.17 and 7,312.77

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Solution

The fourth proportional to 19,799.18, 29,699.17 and 7,312.77 is: 10,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,799.18 : 29,699.17 = 7,312.77 : x
  2. Step 2: Convert to fraction form
    19,799.18/29,699.17 = 7,312.77/x
  3. Step 3: Cross multiply
    19,799.18x = 29,699.17 × 7,312.77
  4. Step 4: Simplify right side
    19,799.18x = 217,183,199.40
  5. Step 5: Solve for x
    x = 217,183,199.40/19,799.18
  6. Step 6: Final answer
    x = 10,969.30

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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.