Home / 15,358.02-21,194.75-8,644.08

Finding the Fourth Proportional to 15,358.02, 21,194.75 and 8,644.08

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Solution

The fourth proportional to 15,358.02, 21,194.75 and 8,644.08 is: 11,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,358.02 : 21,194.75 = 8,644.08 : x
  2. Step 2: Convert to fraction form
    15,358.02/21,194.75 = 8,644.08/x
  3. Step 3: Cross multiply
    15,358.02x = 21,194.75 × 8,644.08
  4. Step 4: Simplify right side
    15,358.02x = 183,209,123.64
  5. Step 5: Solve for x
    x = 183,209,123.64/15,358.02
  6. Step 6: Final answer
    x = 11,929.22

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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.