Home / 9,312.52-13,977.96-6,840.40

Finding the Fourth Proportional to 9,312.52, 13,977.96 and 6,840.40

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Solution

The fourth proportional to 9,312.52, 13,977.96 and 6,840.40 is: 10,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.52 : 13,977.96 = 6,840.40 : x
  2. Step 2: Convert to fraction form
    9,312.52/13,977.96 = 6,840.40/x
  3. Step 3: Cross multiply
    9,312.52x = 13,977.96 × 6,840.40
  4. Step 4: Simplify right side
    9,312.52x = 95,614,837.58
  5. Step 5: Solve for x
    x = 95,614,837.58/9,312.52
  6. Step 6: Final answer
    x = 10,267.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.