Home / 10,967.62-15,135.43-10,130.49

Finding the Fourth Proportional to 10,967.62, 15,135.43 and 10,130.49

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Solution

The fourth proportional to 10,967.62, 15,135.43 and 10,130.49 is: 13,980.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,967.62 : 15,135.43 = 10,130.49 : x
  2. Step 2: Convert to fraction form
    10,967.62/15,135.43 = 10,130.49/x
  3. Step 3: Cross multiply
    10,967.62x = 15,135.43 × 10,130.49
  4. Step 4: Simplify right side
    10,967.62x = 153,329,322.26
  5. Step 5: Solve for x
    x = 153,329,322.26/10,967.62
  6. Step 6: Final answer
    x = 13,980.18

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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.