Home / 14,220.40-19,632.16-9,862.60

Finding the Fourth Proportional to 14,220.40, 19,632.16 and 9,862.60

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Solution

The fourth proportional to 14,220.40, 19,632.16 and 9,862.60 is: 13,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.40 : 19,632.16 = 9,862.60 : x
  2. Step 2: Convert to fraction form
    14,220.40/19,632.16 = 9,862.60/x
  3. Step 3: Cross multiply
    14,220.40x = 19,632.16 × 9,862.60
  4. Step 4: Simplify right side
    14,220.40x = 193,624,141.22
  5. Step 5: Solve for x
    x = 193,624,141.22/14,220.40
  6. Step 6: Final answer
    x = 13,615.94

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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.