Home / 12,427,979.50-17,151,143.81-6,921,354.32

Finding the Fourth Proportional to 12,427,979.50, 17,151,143.81 and 6,921,354.32

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Solution

The fourth proportional to 12,427,979.50, 17,151,143.81 and 6,921,354.32 is: 9,551,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427,979.50 : 17,151,143.81 = 6,921,354.32 : x
  2. Step 2: Convert to fraction form
    12,427,979.50/17,151,143.81 = 6,921,354.32/x
  3. Step 3: Cross multiply
    12,427,979.50x = 17,151,143.81 × 6,921,354.32
  4. Step 4: Simplify right side
    12,427,979.50x = 118,709,143,302,284.75
  5. Step 5: Solve for x
    x = 118,709,143,302,284.75/12,427,979.50
  6. Step 6: Final answer
    x = 9,551,765.30

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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.