Home / 9,291.64-12,822.96-5,312.92

Finding the Fourth Proportional to 9,291.64, 12,822.96 and 5,312.92

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Solution

The fourth proportional to 9,291.64, 12,822.96 and 5,312.92 is: 7,332.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.64 : 12,822.96 = 5,312.92 : x
  2. Step 2: Convert to fraction form
    9,291.64/12,822.96 = 5,312.92/x
  3. Step 3: Cross multiply
    9,291.64x = 12,822.96 × 5,312.92
  4. Step 4: Simplify right side
    9,291.64x = 68,127,360.64
  5. Step 5: Solve for x
    x = 68,127,360.64/9,291.64
  6. Step 6: Final answer
    x = 7,332.11

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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.