Home / 10,219.47-15,333.53-4,378.83

Finding the Fourth Proportional to 10,219.47, 15,333.53 and 4,378.83

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Solution

The fourth proportional to 10,219.47, 15,333.53 and 4,378.83 is: 6,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.47 : 15,333.53 = 4,378.83 : x
  2. Step 2: Convert to fraction form
    10,219.47/15,333.53 = 4,378.83/x
  3. Step 3: Cross multiply
    10,219.47x = 15,333.53 × 4,378.83
  4. Step 4: Simplify right side
    10,219.47x = 67,142,899.28
  5. Step 5: Solve for x
    x = 67,142,899.28/10,219.47
  6. Step 6: Final answer
    x = 6,570.10

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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.