Home / 8,741.72-13,045.40-7,807.52

Finding the Fourth Proportional to 8,741.72, 13,045.40 and 7,807.52

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Solution

The fourth proportional to 8,741.72, 13,045.40 and 7,807.52 is: 11,651.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.72 : 13,045.40 = 7,807.52 : x
  2. Step 2: Convert to fraction form
    8,741.72/13,045.40 = 7,807.52/x
  3. Step 3: Cross multiply
    8,741.72x = 13,045.40 × 7,807.52
  4. Step 4: Simplify right side
    8,741.72x = 101,852,221.41
  5. Step 5: Solve for x
    x = 101,852,221.41/8,741.72
  6. Step 6: Final answer
    x = 11,651.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.