Home / 10,838.78-16,243.58-4,263.20

Finding the Fourth Proportional to 10,838.78, 16,243.58 and 4,263.20

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Solution

The fourth proportional to 10,838.78, 16,243.58 and 4,263.20 is: 6,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,838.78 : 16,243.58 = 4,263.20 : x
  2. Step 2: Convert to fraction form
    10,838.78/16,243.58 = 4,263.20/x
  3. Step 3: Cross multiply
    10,838.78x = 16,243.58 × 4,263.20
  4. Step 4: Simplify right side
    10,838.78x = 69,249,549.04
  5. Step 5: Solve for x
    x = 69,249,549.04/10,838.78
  6. Step 6: Final answer
    x = 6,389.06

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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.