Home / 9,030.49-12,434.39-7,905.13

Finding the Fourth Proportional to 9,030.49, 12,434.39 and 7,905.13

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Solution

The fourth proportional to 9,030.49, 12,434.39 and 7,905.13 is: 10,884.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,030.49 : 12,434.39 = 7,905.13 : x
  2. Step 2: Convert to fraction form
    9,030.49/12,434.39 = 7,905.13/x
  3. Step 3: Cross multiply
    9,030.49x = 12,434.39 × 7,905.13
  4. Step 4: Simplify right side
    9,030.49x = 98,295,429.90
  5. Step 5: Solve for x
    x = 98,295,429.90/9,030.49
  6. Step 6: Final answer
    x = 10,884.84

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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.