Home / 15,368.32-21,207.71-8,562.18

Finding the Fourth Proportional to 15,368.32, 21,207.71 and 8,562.18

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Solution

The fourth proportional to 15,368.32, 21,207.71 and 8,562.18 is: 11,815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368.32 : 21,207.71 = 8,562.18 : x
  2. Step 2: Convert to fraction form
    15,368.32/21,207.71 = 8,562.18/x
  3. Step 3: Cross multiply
    15,368.32x = 21,207.71 × 8,562.18
  4. Step 4: Simplify right side
    15,368.32x = 181,584,259.65
  5. Step 5: Solve for x
    x = 181,584,259.65/15,368.32
  6. Step 6: Final answer
    x = 11,815.49

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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.