Home / 13,875.03-20,768.78-9,913.52

Finding the Fourth Proportional to 13,875.03, 20,768.78 and 9,913.52

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Solution

The fourth proportional to 13,875.03, 20,768.78 and 9,913.52 is: 14,839.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.03 : 20,768.78 = 9,913.52 : x
  2. Step 2: Convert to fraction form
    13,875.03/20,768.78 = 9,913.52/x
  3. Step 3: Cross multiply
    13,875.03x = 20,768.78 × 9,913.52
  4. Step 4: Simplify right side
    13,875.03x = 205,891,562.49
  5. Step 5: Solve for x
    x = 205,891,562.49/13,875.03
  6. Step 6: Final answer
    x = 14,839.00

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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.