Home / 15,808.78-23,722.66-6,319.40

Finding the Fourth Proportional to 15,808.78, 23,722.66 and 6,319.40

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Solution

The fourth proportional to 15,808.78, 23,722.66 and 6,319.40 is: 9,482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,808.78 : 23,722.66 = 6,319.40 : x
  2. Step 2: Convert to fraction form
    15,808.78/23,722.66 = 6,319.40/x
  3. Step 3: Cross multiply
    15,808.78x = 23,722.66 × 6,319.40
  4. Step 4: Simplify right side
    15,808.78x = 149,913,056.66
  5. Step 5: Solve for x
    x = 149,913,056.66/15,808.78
  6. Step 6: Final answer
    x = 9,482.90

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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.