Home / 7,338.60-10,128.24-4,981.50

Finding the Fourth Proportional to 7,338.60, 10,128.24 and 4,981.50

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Solution

The fourth proportional to 7,338.60, 10,128.24 and 4,981.50 is: 6,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.60 : 10,128.24 = 4,981.50 : x
  2. Step 2: Convert to fraction form
    7,338.60/10,128.24 = 4,981.50/x
  3. Step 3: Cross multiply
    7,338.60x = 10,128.24 × 4,981.50
  4. Step 4: Simplify right side
    7,338.60x = 50,453,827.56
  5. Step 5: Solve for x
    x = 50,453,827.56/7,338.60
  6. Step 6: Final answer
    x = 6,875.13

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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.