Home / 13,280.15-19,920.27-4,960.07

Finding the Fourth Proportional to 13,280.15, 19,920.27 and 4,960.07

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Solution

The fourth proportional to 13,280.15, 19,920.27 and 4,960.07 is: 7,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.15 : 19,920.27 = 4,960.07 : x
  2. Step 2: Convert to fraction form
    13,280.15/19,920.27 = 4,960.07/x
  3. Step 3: Cross multiply
    13,280.15x = 19,920.27 × 4,960.07
  4. Step 4: Simplify right side
    13,280.15x = 98,805,983.42
  5. Step 5: Solve for x
    x = 98,805,983.42/13,280.15
  6. Step 6: Final answer
    x = 7,440.13

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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.