Home / 8,557.16-11,808.36-4,971.56

Finding the Fourth Proportional to 8,557.16, 11,808.36 and 4,971.56

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Solution

The fourth proportional to 8,557.16, 11,808.36 and 4,971.56 is: 6,860.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.16 : 11,808.36 = 4,971.56 : x
  2. Step 2: Convert to fraction form
    8,557.16/11,808.36 = 4,971.56/x
  3. Step 3: Cross multiply
    8,557.16x = 11,808.36 × 4,971.56
  4. Step 4: Simplify right side
    8,557.16x = 58,705,970.24
  5. Step 5: Solve for x
    x = 58,705,970.24/8,557.16
  6. Step 6: Final answer
    x = 6,860.45

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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.