Home / 12,560.84-18,833.88-4,770.20

Finding the Fourth Proportional to 12,560.84, 18,833.88 and 4,770.20

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Solution

The fourth proportional to 12,560.84, 18,833.88 and 4,770.20 is: 7,152.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.84 : 18,833.88 = 4,770.20 : x
  2. Step 2: Convert to fraction form
    12,560.84/18,833.88 = 4,770.20/x
  3. Step 3: Cross multiply
    12,560.84x = 18,833.88 × 4,770.20
  4. Step 4: Simplify right side
    12,560.84x = 89,841,374.38
  5. Step 5: Solve for x
    x = 89,841,374.38/12,560.84
  6. Step 6: Final answer
    x = 7,152.50

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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.