Home / 15,360.16-21,194.20-8,644.36

Finding the Fourth Proportional to 15,360.16, 21,194.20 and 8,644.36

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Solution

The fourth proportional to 15,360.16, 21,194.20 and 8,644.36 is: 11,927.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.16 : 21,194.20 = 8,644.36 : x
  2. Step 2: Convert to fraction form
    15,360.16/21,194.20 = 8,644.36/x
  3. Step 3: Cross multiply
    15,360.16x = 21,194.20 × 8,644.36
  4. Step 4: Simplify right side
    15,360.16x = 183,210,294.71
  5. Step 5: Solve for x
    x = 183,210,294.71/15,360.16
  6. Step 6: Final answer
    x = 11,927.63

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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.