Home / 10,389.77-15,576.50-4,842.38

Finding the Fourth Proportional to 10,389.77, 15,576.50 and 4,842.38

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Solution

The fourth proportional to 10,389.77, 15,576.50 and 4,842.38 is: 7,259.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.77 : 15,576.50 = 4,842.38 : x
  2. Step 2: Convert to fraction form
    10,389.77/15,576.50 = 4,842.38/x
  3. Step 3: Cross multiply
    10,389.77x = 15,576.50 × 4,842.38
  4. Step 4: Simplify right side
    10,389.77x = 75,427,383.12
  5. Step 5: Solve for x
    x = 75,427,383.12/10,389.77
  6. Step 6: Final answer
    x = 7,259.77

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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.