Home / 15,683.04-21,642.08-8,968.56

Finding the Fourth Proportional to 15,683.04, 21,642.08 and 8,968.56

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Solution

The fourth proportional to 15,683.04, 21,642.08 and 8,968.56 is: 12,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683.04 : 21,642.08 = 8,968.56 : x
  2. Step 2: Convert to fraction form
    15,683.04/21,642.08 = 8,968.56/x
  3. Step 3: Cross multiply
    15,683.04x = 21,642.08 × 8,968.56
  4. Step 4: Simplify right side
    15,683.04x = 194,098,293.00
  5. Step 5: Solve for x
    x = 194,098,293.00/15,683.04
  6. Step 6: Final answer
    x = 12,376.32

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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.