Home / 15,749.24-21,737.09-9,039.40

Finding the Fourth Proportional to 15,749.24, 21,737.09 and 9,039.40

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Solution

The fourth proportional to 15,749.24, 21,737.09 and 9,039.40 is: 12,476.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.24 : 21,737.09 = 9,039.40 : x
  2. Step 2: Convert to fraction form
    15,749.24/21,737.09 = 9,039.40/x
  3. Step 3: Cross multiply
    15,749.24x = 21,737.09 × 9,039.40
  4. Step 4: Simplify right side
    15,749.24x = 196,490,219.60
  5. Step 5: Solve for x
    x = 196,490,219.60/15,749.24
  6. Step 6: Final answer
    x = 12,476.18

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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.