Home / 15,744.95-21,728.08-8,574.92

Finding the Fourth Proportional to 15,744.95, 21,728.08 and 8,574.92

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Solution

The fourth proportional to 15,744.95, 21,728.08 and 8,574.92 is: 11,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,744.95 : 21,728.08 = 8,574.92 : x
  2. Step 2: Convert to fraction form
    15,744.95/21,728.08 = 8,574.92/x
  3. Step 3: Cross multiply
    15,744.95x = 21,728.08 × 8,574.92
  4. Step 4: Simplify right side
    15,744.95x = 186,316,547.75
  5. Step 5: Solve for x
    x = 186,316,547.75/15,744.95
  6. Step 6: Final answer
    x = 11,833.42

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Half scale
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Double scale
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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.