Home / 13,972.15-19,281.57-7,684.53

Finding the Fourth Proportional to 13,972.15, 19,281.57 and 7,684.53

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Solution

The fourth proportional to 13,972.15, 19,281.57 and 7,684.53 is: 10,604.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.15 : 19,281.57 = 7,684.53 : x
  2. Step 2: Convert to fraction form
    13,972.15/19,281.57 = 7,684.53/x
  3. Step 3: Cross multiply
    13,972.15x = 19,281.57 × 7,684.53
  4. Step 4: Simplify right side
    13,972.15x = 148,169,803.11
  5. Step 5: Solve for x
    x = 148,169,803.11/13,972.15
  6. Step 6: Final answer
    x = 10,604.65

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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.