Home / 15,811.34-23,721.33-6,445.58

Finding the Fourth Proportional to 15,811.34, 23,721.33 and 6,445.58

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Solution

The fourth proportional to 15,811.34, 23,721.33 and 6,445.58 is: 9,670.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.34 : 23,721.33 = 6,445.58 : x
  2. Step 2: Convert to fraction form
    15,811.34/23,721.33 = 6,445.58/x
  3. Step 3: Cross multiply
    15,811.34x = 23,721.33 × 6,445.58
  4. Step 4: Simplify right side
    15,811.34x = 152,897,730.22
  5. Step 5: Solve for x
    x = 152,897,730.22/15,811.34
  6. Step 6: Final answer
    x = 9,670.13

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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.