Home / 15,870.64-23,803.88-4,184.78

Finding the Fourth Proportional to 15,870.64, 23,803.88 and 4,184.78

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Solution

The fourth proportional to 15,870.64, 23,803.88 and 4,184.78 is: 6,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870.64 : 23,803.88 = 4,184.78 : x
  2. Step 2: Convert to fraction form
    15,870.64/23,803.88 = 4,184.78/x
  3. Step 3: Cross multiply
    15,870.64x = 23,803.88 × 4,184.78
  4. Step 4: Simplify right side
    15,870.64x = 99,614,000.95
  5. Step 5: Solve for x
    x = 99,614,000.95/15,870.64
  6. Step 6: Final answer
    x = 6,276.62

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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.