Home / 19,019.52-26,248.32-10,638.72

Finding the Fourth Proportional to 19,019.52, 26,248.32 and 10,638.72

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Solution

The fourth proportional to 19,019.52, 26,248.32 and 10,638.72 is: 14,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.52 : 26,248.32 = 10,638.72 : x
  2. Step 2: Convert to fraction form
    19,019.52/26,248.32 = 10,638.72/x
  3. Step 3: Cross multiply
    19,019.52x = 26,248.32 × 10,638.72
  4. Step 4: Simplify right side
    19,019.52x = 279,248,526.95
  5. Step 5: Solve for x
    x = 279,248,526.95/19,019.52
  6. Step 6: Final answer
    x = 14,682.21

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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.