Home / 13,656.78-18,798.95-11,774.58

Finding the Fourth Proportional to 13,656.78, 18,798.95 and 11,774.58

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Solution

The fourth proportional to 13,656.78, 18,798.95 and 11,774.58 is: 16,208.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.78 : 18,798.95 = 11,774.58 : x
  2. Step 2: Convert to fraction form
    13,656.78/18,798.95 = 11,774.58/x
  3. Step 3: Cross multiply
    13,656.78x = 18,798.95 × 11,774.58
  4. Step 4: Simplify right side
    13,656.78x = 221,349,681.82
  5. Step 5: Solve for x
    x = 221,349,681.82/13,656.78
  6. Step 6: Final answer
    x = 16,208.04

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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.