Home / 13,276.16-18,320.76-7,307.60

Finding the Fourth Proportional to 13,276.16, 18,320.76 and 7,307.60

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Solution

The fourth proportional to 13,276.16, 18,320.76 and 7,307.60 is: 10,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.16 : 18,320.76 = 7,307.60 : x
  2. Step 2: Convert to fraction form
    13,276.16/18,320.76 = 7,307.60/x
  3. Step 3: Cross multiply
    13,276.16x = 18,320.76 × 7,307.60
  4. Step 4: Simplify right side
    13,276.16x = 133,880,785.78
  5. Step 5: Solve for x
    x = 133,880,785.78/13,276.16
  6. Step 6: Final answer
    x = 10,084.30

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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.