Home / 12,159.51-18,225.90-4,762.59

Finding the Fourth Proportional to 12,159.51, 18,225.90 and 4,762.59

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Solution

The fourth proportional to 12,159.51, 18,225.90 and 4,762.59 is: 7,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.51 : 18,225.90 = 4,762.59 : x
  2. Step 2: Convert to fraction form
    12,159.51/18,225.90 = 4,762.59/x
  3. Step 3: Cross multiply
    12,159.51x = 18,225.90 × 4,762.59
  4. Step 4: Simplify right side
    12,159.51x = 86,802,489.08
  5. Step 5: Solve for x
    x = 86,802,489.08/12,159.51
  6. Step 6: Final answer
    x = 7,138.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.