Home / 10,899.71-15,041.45-6,423.65

Finding the Fourth Proportional to 10,899.71, 15,041.45 and 6,423.65

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Solution

The fourth proportional to 10,899.71, 15,041.45 and 6,423.65 is: 8,864.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.71 : 15,041.45 = 6,423.65 : x
  2. Step 2: Convert to fraction form
    10,899.71/15,041.45 = 6,423.65/x
  3. Step 3: Cross multiply
    10,899.71x = 15,041.45 × 6,423.65
  4. Step 4: Simplify right side
    10,899.71x = 96,620,902.97
  5. Step 5: Solve for x
    x = 96,620,902.97/10,899.71
  6. Step 6: Final answer
    x = 8,864.54

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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.