Home / 15,558.04-21,470-8,484.30

Finding the Fourth Proportional to 15,558.04, 21,470 and 8,484.30

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Solution

The fourth proportional to 15,558.04, 21,470 and 8,484.30 is: 11,708.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.04 : 21,470 = 8,484.30 : x
  2. Step 2: Convert to fraction form
    15,558.04/21,470 = 8,484.30/x
  3. Step 3: Cross multiply
    15,558.04x = 21,470 × 8,484.30
  4. Step 4: Simplify right side
    15,558.04x = 182,157,921.00
  5. Step 5: Solve for x
    x = 182,157,921.00/15,558.04
  6. Step 6: Final answer
    x = 11,708.28

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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.