Home / 15,271.04-21,046.56-9,672.32

Finding the Fourth Proportional to 15,271.04, 21,046.56 and 9,672.32

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Solution

The fourth proportional to 15,271.04, 21,046.56 and 9,672.32 is: 13,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271.04 : 21,046.56 = 9,672.32 : x
  2. Step 2: Convert to fraction form
    15,271.04/21,046.56 = 9,672.32/x
  3. Step 3: Cross multiply
    15,271.04x = 21,046.56 × 9,672.32
  4. Step 4: Simplify right side
    15,271.04x = 203,569,063.22
  5. Step 5: Solve for x
    x = 203,569,063.22/15,271.04
  6. Step 6: Final answer
    x = 13,330.40

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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.