Home / 8,901.90-12,271.50-6,539.94

Finding the Fourth Proportional to 8,901.90, 12,271.50 and 6,539.94

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Solution

The fourth proportional to 8,901.90, 12,271.50 and 6,539.94 is: 9,015.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.90 : 12,271.50 = 6,539.94 : x
  2. Step 2: Convert to fraction form
    8,901.90/12,271.50 = 6,539.94/x
  3. Step 3: Cross multiply
    8,901.90x = 12,271.50 × 6,539.94
  4. Step 4: Simplify right side
    8,901.90x = 80,254,873.71
  5. Step 5: Solve for x
    x = 80,254,873.71/8,901.90
  6. Step 6: Final answer
    x = 9,015.48

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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.