Home / 11,543.72-15,929.12-6,507.82

Finding the Fourth Proportional to 11,543.72, 15,929.12 and 6,507.82

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Solution

The fourth proportional to 11,543.72, 15,929.12 and 6,507.82 is: 8,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,543.72 : 15,929.12 = 6,507.82 : x
  2. Step 2: Convert to fraction form
    11,543.72/15,929.12 = 6,507.82/x
  3. Step 3: Cross multiply
    11,543.72x = 15,929.12 × 6,507.82
  4. Step 4: Simplify right side
    11,543.72x = 103,663,733.53
  5. Step 5: Solve for x
    x = 103,663,733.53/11,543.72
  6. Step 6: Final answer
    x = 8,980.10

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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.