Home / 19,518.49-26,926.64-12,440.51

Finding the Fourth Proportional to 19,518.49, 26,926.64 and 12,440.51

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Solution

The fourth proportional to 19,518.49, 26,926.64 and 12,440.51 is: 17,162.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.49 : 26,926.64 = 12,440.51 : x
  2. Step 2: Convert to fraction form
    19,518.49/26,926.64 = 12,440.51/x
  3. Step 3: Cross multiply
    19,518.49x = 26,926.64 × 12,440.51
  4. Step 4: Simplify right side
    19,518.49x = 334,980,999.55
  5. Step 5: Solve for x
    x = 334,980,999.55/19,518.49
  6. Step 6: Final answer
    x = 17,162.24

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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.