Home / 10,799.61-16,248.83-6,420.35

Finding the Fourth Proportional to 10,799.61, 16,248.83 and 6,420.35

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Solution

The fourth proportional to 10,799.61, 16,248.83 and 6,420.35 is: 9,659.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,799.61 : 16,248.83 = 6,420.35 : x
  2. Step 2: Convert to fraction form
    10,799.61/16,248.83 = 6,420.35/x
  3. Step 3: Cross multiply
    10,799.61x = 16,248.83 × 6,420.35
  4. Step 4: Simplify right side
    10,799.61x = 104,323,062.34
  5. Step 5: Solve for x
    x = 104,323,062.34/10,799.61
  6. Step 6: Final answer
    x = 9,659.89

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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.