Home / 18,298.57-25,242.28-11,130.68

Finding the Fourth Proportional to 18,298.57, 25,242.28 and 11,130.68

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Solution

The fourth proportional to 18,298.57, 25,242.28 and 11,130.68 is: 15,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.57 : 25,242.28 = 11,130.68 : x
  2. Step 2: Convert to fraction form
    18,298.57/25,242.28 = 11,130.68/x
  3. Step 3: Cross multiply
    18,298.57x = 25,242.28 × 11,130.68
  4. Step 4: Simplify right side
    18,298.57x = 280,963,721.09
  5. Step 5: Solve for x
    x = 280,963,721.09/18,298.57
  6. Step 6: Final answer
    x = 15,354.41

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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.