Home / 6,985.83-10,478.77-6,635.45

Finding the Fourth Proportional to 6,985.83, 10,478.77 and 6,635.45

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Solution

The fourth proportional to 6,985.83, 10,478.77 and 6,635.45 is: 9,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.83 : 10,478.77 = 6,635.45 : x
  2. Step 2: Convert to fraction form
    6,985.83/10,478.77 = 6,635.45/x
  3. Step 3: Cross multiply
    6,985.83x = 10,478.77 × 6,635.45
  4. Step 4: Simplify right side
    6,985.83x = 69,531,364.00
  5. Step 5: Solve for x
    x = 69,531,364.00/6,985.83
  6. Step 6: Final answer
    x = 9,953.20

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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.