Home / 6,156.56-8,477.16-5,661.20

Finding the Fourth Proportional to 6,156.56, 8,477.16 and 5,661.20

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Solution

The fourth proportional to 6,156.56, 8,477.16 and 5,661.20 is: 7,795.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,156.56 : 8,477.16 = 5,661.20 : x
  2. Step 2: Convert to fraction form
    6,156.56/8,477.16 = 5,661.20/x
  3. Step 3: Cross multiply
    6,156.56x = 8,477.16 × 5,661.20
  4. Step 4: Simplify right side
    6,156.56x = 47,990,898.19
  5. Step 5: Solve for x
    x = 47,990,898.19/6,156.56
  6. Step 6: Final answer
    x = 7,795.08

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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.