Home / 10,953.27-15,115.70-6,477.80

Finding the Fourth Proportional to 10,953.27, 15,115.70 and 6,477.80

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Solution

The fourth proportional to 10,953.27, 15,115.70 and 6,477.80 is: 8,939.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,953.27 : 15,115.70 = 6,477.80 : x
  2. Step 2: Convert to fraction form
    10,953.27/15,115.70 = 6,477.80/x
  3. Step 3: Cross multiply
    10,953.27x = 15,115.70 × 6,477.80
  4. Step 4: Simplify right side
    10,953.27x = 97,916,422.08
  5. Step 5: Solve for x
    x = 97,916,422.08/10,953.27
  6. Step 6: Final answer
    x = 8,939.47

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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.