Home / 7,360.08-11,043.76-5,420.88

Finding the Fourth Proportional to 7,360.08, 11,043.76 and 5,420.88

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Solution

The fourth proportional to 7,360.08, 11,043.76 and 5,420.88 is: 8,134.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,360.08 : 11,043.76 = 5,420.88 : x
  2. Step 2: Convert to fraction form
    7,360.08/11,043.76 = 5,420.88/x
  3. Step 3: Cross multiply
    7,360.08x = 11,043.76 × 5,420.88
  4. Step 4: Simplify right side
    7,360.08x = 59,866,897.71
  5. Step 5: Solve for x
    x = 59,866,897.71/7,360.08
  6. Step 6: Final answer
    x = 8,134.00

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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.