Home / 12,485.04-17,225.18-7,769.02

Finding the Fourth Proportional to 12,485.04, 17,225.18 and 7,769.02

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Solution

The fourth proportional to 12,485.04, 17,225.18 and 7,769.02 is: 10,718.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.04 : 17,225.18 = 7,769.02 : x
  2. Step 2: Convert to fraction form
    12,485.04/17,225.18 = 7,769.02/x
  3. Step 3: Cross multiply
    12,485.04x = 17,225.18 × 7,769.02
  4. Step 4: Simplify right side
    12,485.04x = 133,822,767.92
  5. Step 5: Solve for x
    x = 133,822,767.92/12,485.04
  6. Step 6: Final answer
    x = 10,718.65

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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.