Home / 10,261.34-14,165.79-7,987.67

Finding the Fourth Proportional to 10,261.34, 14,165.79 and 7,987.67

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Solution

The fourth proportional to 10,261.34, 14,165.79 and 7,987.67 is: 11,026.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,261.34 : 14,165.79 = 7,987.67 : x
  2. Step 2: Convert to fraction form
    10,261.34/14,165.79 = 7,987.67/x
  3. Step 3: Cross multiply
    10,261.34x = 14,165.79 × 7,987.67
  4. Step 4: Simplify right side
    10,261.34x = 113,151,655.81
  5. Step 5: Solve for x
    x = 113,151,655.81/10,261.34
  6. Step 6: Final answer
    x = 11,026.99

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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.