Home / 8,943.01-12,328.61-7,047

Finding the Fourth Proportional to 8,943.01, 12,328.61 and 7,047

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Solution

The fourth proportional to 8,943.01, 12,328.61 and 7,047 is: 9,714.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.01 : 12,328.61 = 7,047 : x
  2. Step 2: Convert to fraction form
    8,943.01/12,328.61 = 7,047/x
  3. Step 3: Cross multiply
    8,943.01x = 12,328.61 × 7,047
  4. Step 4: Simplify right side
    8,943.01x = 86,879,679.44
  5. Step 5: Solve for x
    x = 86,879,679.44/8,943.01
  6. Step 6: Final answer
    x = 9,714.82

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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.