Home / 19,587.20-29,384.52-6,443.36

Finding the Fourth Proportional to 19,587.20, 29,384.52 and 6,443.36

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Solution

The fourth proportional to 19,587.20, 29,384.52 and 6,443.36 is: 9,666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.20 : 29,384.52 = 6,443.36 : x
  2. Step 2: Convert to fraction form
    19,587.20/29,384.52 = 6,443.36/x
  3. Step 3: Cross multiply
    19,587.20x = 29,384.52 × 6,443.36
  4. Step 4: Simplify right side
    19,587.20x = 189,335,040.79
  5. Step 5: Solve for x
    x = 189,335,040.79/19,587.20
  6. Step 6: Final answer
    x = 9,666.26

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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.