Home / 10,151.04-14,014.60-6,620.40

Finding the Fourth Proportional to 10,151.04, 14,014.60 and 6,620.40

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Solution

The fourth proportional to 10,151.04, 14,014.60 and 6,620.40 is: 9,140.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,151.04 : 14,014.60 = 6,620.40 : x
  2. Step 2: Convert to fraction form
    10,151.04/14,014.60 = 6,620.40/x
  3. Step 3: Cross multiply
    10,151.04x = 14,014.60 × 6,620.40
  4. Step 4: Simplify right side
    10,151.04x = 92,782,257.84
  5. Step 5: Solve for x
    x = 92,782,257.84/10,151.04
  6. Step 6: Final answer
    x = 9,140.17

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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.