Home / 15,637.32-21,573.46-9,658.72

Finding the Fourth Proportional to 15,637.32, 21,573.46 and 9,658.72

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Solution

The fourth proportional to 15,637.32, 21,573.46 and 9,658.72 is: 13,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.32 : 21,573.46 = 9,658.72 : x
  2. Step 2: Convert to fraction form
    15,637.32/21,573.46 = 9,658.72/x
  3. Step 3: Cross multiply
    15,637.32x = 21,573.46 × 9,658.72
  4. Step 4: Simplify right side
    15,637.32x = 208,372,009.57
  5. Step 5: Solve for x
    x = 208,372,009.57/15,637.32
  6. Step 6: Final answer
    x = 13,325.30

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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.