Home / 13,275.43-18,320.58-7,307.35

Finding the Fourth Proportional to 13,275.43, 18,320.58 and 7,307.35

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Solution

The fourth proportional to 13,275.43, 18,320.58 and 7,307.35 is: 10,084.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.43 : 18,320.58 = 7,307.35 : x
  2. Step 2: Convert to fraction form
    13,275.43/18,320.58 = 7,307.35/x
  3. Step 3: Cross multiply
    13,275.43x = 18,320.58 × 7,307.35
  4. Step 4: Simplify right side
    13,275.43x = 133,874,794.16
  5. Step 5: Solve for x
    x = 133,874,794.16/13,275.43
  6. Step 6: Final answer
    x = 10,084.41

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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.