Home / 15,683.99-21,637.74-8,966.02

Finding the Fourth Proportional to 15,683.99, 21,637.74 and 8,966.02

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Solution

The fourth proportional to 15,683.99, 21,637.74 and 8,966.02 is: 12,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683.99 : 21,637.74 = 8,966.02 : x
  2. Step 2: Convert to fraction form
    15,683.99/21,637.74 = 8,966.02/x
  3. Step 3: Cross multiply
    15,683.99x = 21,637.74 × 8,966.02
  4. Step 4: Simplify right side
    15,683.99x = 194,004,343.62
  5. Step 5: Solve for x
    x = 194,004,343.62/15,683.99
  6. Step 6: Final answer
    x = 12,369.58

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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.