Home / 11,981.95-16,526.28-7,941.47

Finding the Fourth Proportional to 11,981.95, 16,526.28 and 7,941.47

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Solution

The fourth proportional to 11,981.95, 16,526.28 and 7,941.47 is: 10,953.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.95 : 16,526.28 = 7,941.47 : x
  2. Step 2: Convert to fraction form
    11,981.95/16,526.28 = 7,941.47/x
  3. Step 3: Cross multiply
    11,981.95x = 16,526.28 × 7,941.47
  4. Step 4: Simplify right side
    11,981.95x = 131,242,874.20
  5. Step 5: Solve for x
    x = 131,242,874.20/11,981.95
  6. Step 6: Final answer
    x = 10,953.38

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Double scale
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Similar ratio
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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.