Home / 15,019.86-20,726.10-9,355.26

Finding the Fourth Proportional to 15,019.86, 20,726.10 and 9,355.26

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Solution

The fourth proportional to 15,019.86, 20,726.10 and 9,355.26 is: 12,909.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.86 : 20,726.10 = 9,355.26 : x
  2. Step 2: Convert to fraction form
    15,019.86/20,726.10 = 9,355.26/x
  3. Step 3: Cross multiply
    15,019.86x = 20,726.10 × 9,355.26
  4. Step 4: Simplify right side
    15,019.86x = 193,898,054.29
  5. Step 5: Solve for x
    x = 193,898,054.29/15,019.86
  6. Step 6: Final answer
    x = 12,909.44

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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.