Home / 10,970.13-15,147.09-10,948.26

Finding the Fourth Proportional to 10,970.13, 15,147.09 and 10,948.26

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Solution

The fourth proportional to 10,970.13, 15,147.09 and 10,948.26 is: 15,116.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.13 : 15,147.09 = 10,948.26 : x
  2. Step 2: Convert to fraction form
    10,970.13/15,147.09 = 10,948.26/x
  3. Step 3: Cross multiply
    10,970.13x = 15,147.09 × 10,948.26
  4. Step 4: Simplify right side
    10,970.13x = 165,834,279.56
  5. Step 5: Solve for x
    x = 165,834,279.56/10,970.13
  6. Step 6: Final answer
    x = 15,116.89

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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.