Home / 10,719.17-14,777.22-7,881.53

Finding the Fourth Proportional to 10,719.17, 14,777.22 and 7,881.53

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Solution

The fourth proportional to 10,719.17, 14,777.22 and 7,881.53 is: 10,865.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.17 : 14,777.22 = 7,881.53 : x
  2. Step 2: Convert to fraction form
    10,719.17/14,777.22 = 7,881.53/x
  3. Step 3: Cross multiply
    10,719.17x = 14,777.22 × 7,881.53
  4. Step 4: Simplify right side
    10,719.17x = 116,467,102.75
  5. Step 5: Solve for x
    x = 116,467,102.75/10,719.17
  6. Step 6: Final answer
    x = 10,865.31

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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.