Home / 19,656.60-27,124.40-11,159.09

Finding the Fourth Proportional to 19,656.60, 27,124.40 and 11,159.09

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Solution

The fourth proportional to 19,656.60, 27,124.40 and 11,159.09 is: 15,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,656.60 : 27,124.40 = 11,159.09 : x
  2. Step 2: Convert to fraction form
    19,656.60/27,124.40 = 11,159.09/x
  3. Step 3: Cross multiply
    19,656.60x = 27,124.40 × 11,159.09
  4. Step 4: Simplify right side
    19,656.60x = 302,683,533.99
  5. Step 5: Solve for x
    x = 302,683,533.99/19,656.60
  6. Step 6: Final answer
    x = 15,398.57

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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.