Home / 10,970.88-15,139.53-6,255.06

Finding the Fourth Proportional to 10,970.88, 15,139.53 and 6,255.06

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Solution

The fourth proportional to 10,970.88, 15,139.53 and 6,255.06 is: 8,631.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.88 : 15,139.53 = 6,255.06 : x
  2. Step 2: Convert to fraction form
    10,970.88/15,139.53 = 6,255.06/x
  3. Step 3: Cross multiply
    10,970.88x = 15,139.53 × 6,255.06
  4. Step 4: Simplify right side
    10,970.88x = 94,698,668.52
  5. Step 5: Solve for x
    x = 94,698,668.52/10,970.88
  6. Step 6: Final answer
    x = 8,631.82

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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.