Home / 13,788.47-20,526.75-13,706.45

Finding the Fourth Proportional to 13,788.47, 20,526.75 and 13,706.45

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Solution

The fourth proportional to 13,788.47, 20,526.75 and 13,706.45 is: 20,404.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.47 : 20,526.75 = 13,706.45 : x
  2. Step 2: Convert to fraction form
    13,788.47/20,526.75 = 13,706.45/x
  3. Step 3: Cross multiply
    13,788.47x = 20,526.75 × 13,706.45
  4. Step 4: Simplify right side
    13,788.47x = 281,348,769.90
  5. Step 5: Solve for x
    x = 281,348,769.90/13,788.47
  6. Step 6: Final answer
    x = 20,404.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.