Home / 19,303.93-28,960.15-10,987.86

Finding the Fourth Proportional to 19,303.93, 28,960.15 and 10,987.86

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Solution

The fourth proportional to 19,303.93, 28,960.15 and 10,987.86 is: 16,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.93 : 28,960.15 = 10,987.86 : x
  2. Step 2: Convert to fraction form
    19,303.93/28,960.15 = 10,987.86/x
  3. Step 3: Cross multiply
    19,303.93x = 28,960.15 × 10,987.86
  4. Step 4: Simplify right side
    19,303.93x = 318,210,073.78
  5. Step 5: Solve for x
    x = 318,210,073.78/19,303.93
  6. Step 6: Final answer
    x = 16,484.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.