Home / 19,038.40-26,289.12-11,967.10

Finding the Fourth Proportional to 19,038.40, 26,289.12 and 11,967.10

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Solution

The fourth proportional to 19,038.40, 26,289.12 and 11,967.10 is: 16,524.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,038.40 : 26,289.12 = 11,967.10 : x
  2. Step 2: Convert to fraction form
    19,038.40/26,289.12 = 11,967.10/x
  3. Step 3: Cross multiply
    19,038.40x = 26,289.12 × 11,967.10
  4. Step 4: Simplify right side
    19,038.40x = 314,604,527.95
  5. Step 5: Solve for x
    x = 314,604,527.95/19,038.40
  6. Step 6: Final answer
    x = 16,524.74

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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.