Home / 12,951.34-19,431.10-4,631.16

Finding the Fourth Proportional to 12,951.34, 19,431.10 and 4,631.16

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Solution

The fourth proportional to 12,951.34, 19,431.10 and 4,631.16 is: 6,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.34 : 19,431.10 = 4,631.16 : x
  2. Step 2: Convert to fraction form
    12,951.34/19,431.10 = 4,631.16/x
  3. Step 3: Cross multiply
    12,951.34x = 19,431.10 × 4,631.16
  4. Step 4: Simplify right side
    12,951.34x = 89,988,533.08
  5. Step 5: Solve for x
    x = 89,988,533.08/12,951.34
  6. Step 6: Final answer
    x = 6,948.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.