Home / 6,511.23-8,977.32-5,315.00

Finding the Fourth Proportional to 6,511.23, 8,977.32 and 5,315.00

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Solution

The fourth proportional to 6,511.23, 8,977.32 and 5,315.00 is: 7,328.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.23 : 8,977.32 = 5,315.00 : x
  2. Step 2: Convert to fraction form
    6,511.23/8,977.32 = 5,315.00/x
  3. Step 3: Cross multiply
    6,511.23x = 8,977.32 × 5,315.00
  4. Step 4: Simplify right side
    6,511.23x = 47,714,410.91
  5. Step 5: Solve for x
    x = 47,714,410.91/6,511.23
  6. Step 6: Final answer
    x = 7,328.02

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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.