Home / 10,749.21-14,828.57-9,331.00

Finding the Fourth Proportional to 10,749.21, 14,828.57 and 9,331.00

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Solution

The fourth proportional to 10,749.21, 14,828.57 and 9,331.00 is: 12,872.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,749.21 : 14,828.57 = 9,331.00 : x
  2. Step 2: Convert to fraction form
    10,749.21/14,828.57 = 9,331.00/x
  3. Step 3: Cross multiply
    10,749.21x = 14,828.57 × 9,331.00
  4. Step 4: Simplify right side
    10,749.21x = 138,365,337.93
  5. Step 5: Solve for x
    x = 138,365,337.93/10,749.21
  6. Step 6: Final answer
    x = 12,872.14

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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.