Home / 9,320.98-12,862.88-5,288.58

Finding the Fourth Proportional to 9,320.98, 12,862.88 and 5,288.58

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Solution

The fourth proportional to 9,320.98, 12,862.88 and 5,288.58 is: 7,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.98 : 12,862.88 = 5,288.58 : x
  2. Step 2: Convert to fraction form
    9,320.98/12,862.88 = 5,288.58/x
  3. Step 3: Cross multiply
    9,320.98x = 12,862.88 × 5,288.58
  4. Step 4: Simplify right side
    9,320.98x = 68,026,369.91
  5. Step 5: Solve for x
    x = 68,026,369.91/9,320.98
  6. Step 6: Final answer
    x = 7,298.20

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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.