Home / 13,275.85-18,320.58-7,307.62

Finding the Fourth Proportional to 13,275.85, 18,320.58 and 7,307.62

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Solution

The fourth proportional to 13,275.85, 18,320.58 and 7,307.62 is: 10,084.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.85 : 18,320.58 = 7,307.62 : x
  2. Step 2: Convert to fraction form
    13,275.85/18,320.58 = 7,307.62/x
  3. Step 3: Cross multiply
    13,275.85x = 18,320.58 × 7,307.62
  4. Step 4: Simplify right side
    13,275.85x = 133,879,791.02
  5. Step 5: Solve for x
    x = 133,879,791.02/13,275.85
  6. Step 6: Final answer
    x = 10,084.46

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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.