Home / 10,518.77-15,787.34-4,282.18

Finding the Fourth Proportional to 10,518.77, 15,787.34 and 4,282.18

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Solution

The fourth proportional to 10,518.77, 15,787.34 and 4,282.18 is: 6,427.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.77 : 15,787.34 = 4,282.18 : x
  2. Step 2: Convert to fraction form
    10,518.77/15,787.34 = 4,282.18/x
  3. Step 3: Cross multiply
    10,518.77x = 15,787.34 × 4,282.18
  4. Step 4: Simplify right side
    10,518.77x = 67,604,231.60
  5. Step 5: Solve for x
    x = 67,604,231.60/10,518.77
  6. Step 6: Final answer
    x = 6,427.01

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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.