Home / 6,666.45-9,990.08-4,897.56

Finding the Fourth Proportional to 6,666.45, 9,990.08 and 4,897.56

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Solution

The fourth proportional to 6,666.45, 9,990.08 and 4,897.56 is: 7,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.45 : 9,990.08 = 4,897.56 : x
  2. Step 2: Convert to fraction form
    6,666.45/9,990.08 = 4,897.56/x
  3. Step 3: Cross multiply
    6,666.45x = 9,990.08 × 4,897.56
  4. Step 4: Simplify right side
    6,666.45x = 48,927,075.09
  5. Step 5: Solve for x
    x = 48,927,075.09/6,666.45
  6. Step 6: Final answer
    x = 7,339.30

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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.