Home / 13,955.84-20,925.12-6,555.68

Finding the Fourth Proportional to 13,955.84, 20,925.12 and 6,555.68

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Solution

The fourth proportional to 13,955.84, 20,925.12 and 6,555.68 is: 9,829.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.84 : 20,925.12 = 6,555.68 : x
  2. Step 2: Convert to fraction form
    13,955.84/20,925.12 = 6,555.68/x
  3. Step 3: Cross multiply
    13,955.84x = 20,925.12 × 6,555.68
  4. Step 4: Simplify right side
    13,955.84x = 137,178,390.68
  5. Step 5: Solve for x
    x = 137,178,390.68/13,955.84
  6. Step 6: Final answer
    x = 9,829.46

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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.