Home / 13,220.48-19,823.74-6,983.84

Finding the Fourth Proportional to 13,220.48, 19,823.74 and 6,983.84

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Solution

The fourth proportional to 13,220.48, 19,823.74 and 6,983.84 is: 10,472.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.48 : 19,823.74 = 6,983.84 : x
  2. Step 2: Convert to fraction form
    13,220.48/19,823.74 = 6,983.84/x
  3. Step 3: Cross multiply
    13,220.48x = 19,823.74 × 6,983.84
  4. Step 4: Simplify right side
    13,220.48x = 138,445,828.36
  5. Step 5: Solve for x
    x = 138,445,828.36/13,220.48
  6. Step 6: Final answer
    x = 10,472.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.