Home / 10,358.31-14,296.40-9,725.30

Finding the Fourth Proportional to 10,358.31, 14,296.40 and 9,725.30

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Solution

The fourth proportional to 10,358.31, 14,296.40 and 9,725.30 is: 13,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358.31 : 14,296.40 = 9,725.30 : x
  2. Step 2: Convert to fraction form
    10,358.31/14,296.40 = 9,725.30/x
  3. Step 3: Cross multiply
    10,358.31x = 14,296.40 × 9,725.30
  4. Step 4: Simplify right side
    10,358.31x = 139,036,658.81
  5. Step 5: Solve for x
    x = 139,036,658.81/10,358.31
  6. Step 6: Final answer
    x = 13,422.72

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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.