Home / 18,628.25-25,707.11-10,130.47

Finding the Fourth Proportional to 18,628.25, 25,707.11 and 10,130.47

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Solution

The fourth proportional to 18,628.25, 25,707.11 and 10,130.47 is: 13,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.25 : 25,707.11 = 10,130.47 : x
  2. Step 2: Convert to fraction form
    18,628.25/25,707.11 = 10,130.47/x
  3. Step 3: Cross multiply
    18,628.25x = 25,707.11 × 10,130.47
  4. Step 4: Simplify right side
    18,628.25x = 260,424,927.45
  5. Step 5: Solve for x
    x = 260,424,927.45/18,628.25
  6. Step 6: Final answer
    x = 13,980.11

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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.