Home / 9,330.30-12,875.58-5,138.46

Finding the Fourth Proportional to 9,330.30, 12,875.58 and 5,138.46

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Solution

The fourth proportional to 9,330.30, 12,875.58 and 5,138.46 is: 7,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330.30 : 12,875.58 = 5,138.46 : x
  2. Step 2: Convert to fraction form
    9,330.30/12,875.58 = 5,138.46/x
  3. Step 3: Cross multiply
    9,330.30x = 12,875.58 × 5,138.46
  4. Step 4: Simplify right side
    9,330.30x = 66,160,652.81
  5. Step 5: Solve for x
    x = 66,160,652.81/9,330.30
  6. Step 6: Final answer
    x = 7,090.95

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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.