Home / 15,915.83-23,966.21-11,785.10

Finding the Fourth Proportional to 15,915.83, 23,966.21 and 11,785.10

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Solution

The fourth proportional to 15,915.83, 23,966.21 and 11,785.10 is: 17,746.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915.83 : 23,966.21 = 11,785.10 : x
  2. Step 2: Convert to fraction form
    15,915.83/23,966.21 = 11,785.10/x
  3. Step 3: Cross multiply
    15,915.83x = 23,966.21 × 11,785.10
  4. Step 4: Simplify right side
    15,915.83x = 282,444,091.10
  5. Step 5: Solve for x
    x = 282,444,091.10/15,915.83
  6. Step 6: Final answer
    x = 17,746.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.