Home / 11,109.65-15,332.27-6,331.05

Finding the Fourth Proportional to 11,109.65, 15,332.27 and 6,331.05

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Solution

The fourth proportional to 11,109.65, 15,332.27 and 6,331.05 is: 8,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.65 : 15,332.27 = 6,331.05 : x
  2. Step 2: Convert to fraction form
    11,109.65/15,332.27 = 6,331.05/x
  3. Step 3: Cross multiply
    11,109.65x = 15,332.27 × 6,331.05
  4. Step 4: Simplify right side
    11,109.65x = 97,069,393.82
  5. Step 5: Solve for x
    x = 97,069,393.82/11,109.65
  6. Step 6: Final answer
    x = 8,737.40

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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.