Home / 9,376.02-12,926.79-7,776.81

Finding the Fourth Proportional to 9,376.02, 12,926.79 and 7,776.81

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Solution

The fourth proportional to 9,376.02, 12,926.79 and 7,776.81 is: 10,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.02 : 12,926.79 = 7,776.81 : x
  2. Step 2: Convert to fraction form
    9,376.02/12,926.79 = 7,776.81/x
  3. Step 3: Cross multiply
    9,376.02x = 12,926.79 × 7,776.81
  4. Step 4: Simplify right side
    9,376.02x = 100,529,189.74
  5. Step 5: Solve for x
    x = 100,529,189.74/9,376.02
  6. Step 6: Final answer
    x = 10,721.95

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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.