Home / 7,288.48-10,938.30-5,641.12

Finding the Fourth Proportional to 7,288.48, 10,938.30 and 5,641.12

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Solution

The fourth proportional to 7,288.48, 10,938.30 and 5,641.12 is: 8,466.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.48 : 10,938.30 = 5,641.12 : x
  2. Step 2: Convert to fraction form
    7,288.48/10,938.30 = 5,641.12/x
  3. Step 3: Cross multiply
    7,288.48x = 10,938.30 × 5,641.12
  4. Step 4: Simplify right side
    7,288.48x = 61,704,262.90
  5. Step 5: Solve for x
    x = 61,704,262.90/7,288.48
  6. Step 6: Final answer
    x = 8,466.00

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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.