Home / 10,431.78-15,647.22-3,036.09

Finding the Fourth Proportional to 10,431.78, 15,647.22 and 3,036.09

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Solution

The fourth proportional to 10,431.78, 15,647.22 and 3,036.09 is: 4,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.78 : 15,647.22 = 3,036.09 : x
  2. Step 2: Convert to fraction form
    10,431.78/15,647.22 = 3,036.09/x
  3. Step 3: Cross multiply
    10,431.78x = 15,647.22 × 3,036.09
  4. Step 4: Simplify right side
    10,431.78x = 47,506,368.17
  5. Step 5: Solve for x
    x = 47,506,368.17/10,431.78
  6. Step 6: Final answer
    x = 4,554.00

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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.