Home / 12,945.61-19,330.58-10,283.14

Finding the Fourth Proportional to 12,945.61, 19,330.58 and 10,283.14

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Solution

The fourth proportional to 12,945.61, 19,330.58 and 10,283.14 is: 15,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.61 : 19,330.58 = 10,283.14 : x
  2. Step 2: Convert to fraction form
    12,945.61/19,330.58 = 10,283.14/x
  3. Step 3: Cross multiply
    12,945.61x = 19,330.58 × 10,283.14
  4. Step 4: Simplify right side
    12,945.61x = 198,779,037.80
  5. Step 5: Solve for x
    x = 198,779,037.80/12,945.61
  6. Step 6: Final answer
    x = 15,354.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.