Home / 10,478.58-15,717.87-6,585.72

Finding the Fourth Proportional to 10,478.58, 15,717.87 and 6,585.72

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Solution

The fourth proportional to 10,478.58, 15,717.87 and 6,585.72 is: 9,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.58 : 15,717.87 = 6,585.72 : x
  2. Step 2: Convert to fraction form
    10,478.58/15,717.87 = 6,585.72/x
  3. Step 3: Cross multiply
    10,478.58x = 15,717.87 × 6,585.72
  4. Step 4: Simplify right side
    10,478.58x = 103,513,490.82
  5. Step 5: Solve for x
    x = 103,513,490.82/10,478.58
  6. Step 6: Final answer
    x = 9,878.58

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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.