Home / 15,878.40-23,809.92-9,306.72

Finding the Fourth Proportional to 15,878.40, 23,809.92 and 9,306.72

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Solution

The fourth proportional to 15,878.40, 23,809.92 and 9,306.72 is: 13,955.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.40 : 23,809.92 = 9,306.72 : x
  2. Step 2: Convert to fraction form
    15,878.40/23,809.92 = 9,306.72/x
  3. Step 3: Cross multiply
    15,878.40x = 23,809.92 × 9,306.72
  4. Step 4: Simplify right side
    15,878.40x = 221,592,258.66
  5. Step 5: Solve for x
    x = 221,592,258.66/15,878.40
  6. Step 6: Final answer
    x = 13,955.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.