Home / 15,801.32-23,703.06-5,420.36

Finding the Fourth Proportional to 15,801.32, 23,703.06 and 5,420.36

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Solution

The fourth proportional to 15,801.32, 23,703.06 and 5,420.36 is: 8,130.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,801.32 : 23,703.06 = 5,420.36 : x
  2. Step 2: Convert to fraction form
    15,801.32/23,703.06 = 5,420.36/x
  3. Step 3: Cross multiply
    15,801.32x = 23,703.06 × 5,420.36
  4. Step 4: Simplify right side
    15,801.32x = 128,479,118.30
  5. Step 5: Solve for x
    x = 128,479,118.30/15,801.32
  6. Step 6: Final answer
    x = 8,130.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.