Home / 19,215.50-26,539.26-12,916.94

Finding the Fourth Proportional to 19,215.50, 26,539.26 and 12,916.94

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Solution

The fourth proportional to 19,215.50, 26,539.26 and 12,916.94 is: 17,840.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.50 : 26,539.26 = 12,916.94 : x
  2. Step 2: Convert to fraction form
    19,215.50/26,539.26 = 12,916.94/x
  3. Step 3: Cross multiply
    19,215.50x = 26,539.26 × 12,916.94
  4. Step 4: Simplify right side
    19,215.50x = 342,806,029.06
  5. Step 5: Solve for x
    x = 342,806,029.06/19,215.50
  6. Step 6: Final answer
    x = 17,840.08

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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.