Home / 6,985.48-9,639.57-4,001.50

Finding the Fourth Proportional to 6,985.48, 9,639.57 and 4,001.50

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Solution

The fourth proportional to 6,985.48, 9,639.57 and 4,001.50 is: 5,521.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.48 : 9,639.57 = 4,001.50 : x
  2. Step 2: Convert to fraction form
    6,985.48/9,639.57 = 4,001.50/x
  3. Step 3: Cross multiply
    6,985.48x = 9,639.57 × 4,001.50
  4. Step 4: Simplify right side
    6,985.48x = 38,572,736.40
  5. Step 5: Solve for x
    x = 38,572,736.40/6,985.48
  6. Step 6: Final answer
    x = 5,521.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.