Home / 19,458.04-26,830.74-13,159.48

Finding the Fourth Proportional to 19,458.04, 26,830.74 and 13,159.48

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Solution

The fourth proportional to 19,458.04, 26,830.74 and 13,159.48 is: 18,145.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,458.04 : 26,830.74 = 13,159.48 : x
  2. Step 2: Convert to fraction form
    19,458.04/26,830.74 = 13,159.48/x
  3. Step 3: Cross multiply
    19,458.04x = 26,830.74 × 13,159.48
  4. Step 4: Simplify right side
    19,458.04x = 353,078,586.42
  5. Step 5: Solve for x
    x = 353,078,586.42/19,458.04
  6. Step 6: Final answer
    x = 18,145.64

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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.