Home / 7,070.91-9,756.72-4,087.14

Finding the Fourth Proportional to 7,070.91, 9,756.72 and 4,087.14

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Solution

The fourth proportional to 7,070.91, 9,756.72 and 4,087.14 is: 5,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.91 : 9,756.72 = 4,087.14 : x
  2. Step 2: Convert to fraction form
    7,070.91/9,756.72 = 4,087.14/x
  3. Step 3: Cross multiply
    7,070.91x = 9,756.72 × 4,087.14
  4. Step 4: Simplify right side
    7,070.91x = 39,877,080.58
  5. Step 5: Solve for x
    x = 39,877,080.58/7,070.91
  6. Step 6: Final answer
    x = 5,639.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.