Home / 15,643.79-23,461.57-5,785.89

Finding the Fourth Proportional to 15,643.79, 23,461.57 and 5,785.89

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Solution

The fourth proportional to 15,643.79, 23,461.57 and 5,785.89 is: 8,677.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643.79 : 23,461.57 = 5,785.89 : x
  2. Step 2: Convert to fraction form
    15,643.79/23,461.57 = 5,785.89/x
  3. Step 3: Cross multiply
    15,643.79x = 23,461.57 × 5,785.89
  4. Step 4: Simplify right side
    15,643.79x = 135,746,063.25
  5. Step 5: Solve for x
    x = 135,746,063.25/15,643.79
  6. Step 6: Final answer
    x = 8,677.31

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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.