Home / 10,070.47-15,107.87-4,223.71

Finding the Fourth Proportional to 10,070.47, 15,107.87 and 4,223.71

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Solution

The fourth proportional to 10,070.47, 15,107.87 and 4,223.71 is: 6,336.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,070.47 : 15,107.87 = 4,223.71 : x
  2. Step 2: Convert to fraction form
    10,070.47/15,107.87 = 4,223.71/x
  3. Step 3: Cross multiply
    10,070.47x = 15,107.87 × 4,223.71
  4. Step 4: Simplify right side
    10,070.47x = 63,811,261.60
  5. Step 5: Solve for x
    x = 63,811,261.60/10,070.47
  6. Step 6: Final answer
    x = 6,336.47

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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.