Home / 10,899.46-15,041.11-6,423.40

Finding the Fourth Proportional to 10,899.46, 15,041.11 and 6,423.40

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Solution

The fourth proportional to 10,899.46, 15,041.11 and 6,423.40 is: 8,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.46 : 15,041.11 = 6,423.40 : x
  2. Step 2: Convert to fraction form
    10,899.46/15,041.11 = 6,423.40/x
  3. Step 3: Cross multiply
    10,899.46x = 15,041.11 × 6,423.40
  4. Step 4: Simplify right side
    10,899.46x = 96,614,958.65
  5. Step 5: Solve for x
    x = 96,614,958.65/10,899.46
  6. Step 6: Final answer
    x = 8,864.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.