Home / 15,990.04-22,066.38-8,916.94

Finding the Fourth Proportional to 15,990.04, 22,066.38 and 8,916.94

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Solution

The fourth proportional to 15,990.04, 22,066.38 and 8,916.94 is: 12,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.04 : 22,066.38 = 8,916.94 : x
  2. Step 2: Convert to fraction form
    15,990.04/22,066.38 = 8,916.94/x
  3. Step 3: Cross multiply
    15,990.04x = 22,066.38 × 8,916.94
  4. Step 4: Simplify right side
    15,990.04x = 196,764,586.48
  5. Step 5: Solve for x
    x = 196,764,586.48/15,990.04
  6. Step 6: Final answer
    x = 12,305.45

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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.