Home / 8,739.63-12,061.01-5,157.06

Finding the Fourth Proportional to 8,739.63, 12,061.01 and 5,157.06

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Solution

The fourth proportional to 8,739.63, 12,061.01 and 5,157.06 is: 7,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.63 : 12,061.01 = 5,157.06 : x
  2. Step 2: Convert to fraction form
    8,739.63/12,061.01 = 5,157.06/x
  3. Step 3: Cross multiply
    8,739.63x = 12,061.01 × 5,157.06
  4. Step 4: Simplify right side
    8,739.63x = 62,199,352.23
  5. Step 5: Solve for x
    x = 62,199,352.23/8,739.63
  6. Step 6: Final answer
    x = 7,116.93

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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.