Home / 15,693.04-21,650.27-8,975.08

Finding the Fourth Proportional to 15,693.04, 21,650.27 and 8,975.08

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Solution

The fourth proportional to 15,693.04, 21,650.27 and 8,975.08 is: 12,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.04 : 21,650.27 = 8,975.08 : x
  2. Step 2: Convert to fraction form
    15,693.04/21,650.27 = 8,975.08/x
  3. Step 3: Cross multiply
    15,693.04x = 21,650.27 × 8,975.08
  4. Step 4: Simplify right side
    15,693.04x = 194,312,905.27
  5. Step 5: Solve for x
    x = 194,312,905.27/15,693.04
  6. Step 6: Final answer
    x = 12,382.11

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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.